Astrophysicist reacts to Stargate SG-1 "A Matter of Time" - wormholes, black holes & time dilation!
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- čas přidán 16. 06. 2024
- Black holes, wormholes, time dilation - Season 2 Episode 16 "A Matter of Time" from Stargate SG-1 has got it all! To learn more about the physics concepts you hear about in sci-fi head to brilliant.org/drbecky
Hafele & Keating (2021; atomic clocks expertiment) = www.personal.psu.edu/rq9/HOW/A...
00:00 - Introduction
01:17 - Supernovae and black holes
04:02 - Wormholes vs black holes
05:05 - Wormhole analogy
06:13 - Gravitational redshift
07:54 - Teleportation
09:06 - ERROR - gravitational redshift
10:25 - Time Dilation
13:00 - Spaghettification
14:16 - ERROR - wormholes transferring gravity
15:20 - ERROR - wormholes transferring time dilation
16:45 - ERROR gravitational waves
17:55 - O'Neil being an ass to Carter
18:31 - ERROR black holes aren't hoovers
20:56 - General Relativity errors part of the story
21:50 - An explosion to destroy a wormhole? lol
22:39 - G-forces climbing a rope
23:16 - Final thoughts
26:00 - BLOOPERS
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👩🏽💻 I'm Dr Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars.
drbecky.uk.com
rebeccasmethurst.co.uk - Věda a technologie
The Actress Amanda Tapping would probably love to hear from you. As the scientist character she read popular science books and demanded lines explaining something wasn't working according to the known laws of physics so she wouldn't look stupid. The production gives her lots of credit for keeping the science in the science fiction, as much as it ever is in these shows.
Allegedly David Hewlett, who played Rodney McKay, also liked to know the real science behind his lines. Fun fact both Tapping and Hewlett were both born in Southern England before their parents emigrated to Canada.
Yes, both Tapping and Hewlet are a big driving force why the science babble is just so plausible, if not down right accurate. I mean it's still speculative science fiction, and i expect it to go weird and wonky places and it does, but the basis in which it roots is just so god damn solid and firm that even the most ridicolous 'problems of the week' are just a joy from a casual perspective as well as a sciency. very 'grippy' (as in, comfortable to grip, lays in the hand well, like a tool e.g.) as my prof used to put it :D
"science books" there is no science in stargate
The first rule about science fiction is don't talk about the science! I just got done watching every sg1 episode and the science is horrendous. Samantha Carter accurately represents how a star functions and in her very next sentence completely contradicts herself. I felt embarrassed and frustrated just watching them get the science wrong nearly every time.
@@coreymiller6717 lets not forget the base wonk of the jaffa staffs.
The explosion moving the wormhole isn't really supposed to work with the known science of wormholes, but is actually specific to the Stargate technology that is creating them. A previous episode established that a large energy discharge directed toward the gate would cause the wormhole to jump to another gate within the Stargate system.
was wondering if someone would point that, and if not i would, but you did it ^^
Yes. You are right. And to establish it further: The Stargate itself is a very complicated supercomputer or just call it a "door". The door itself works by bending space and time itself but on a controlled level. (as we would imagine a wormhole working between 2 points of time and space). So the Stargate iself is a computer and it has in-built commands for special scenarios like this. Just to stop it from exploding itself by overcharging itself. (This can be broken though as we have seen in Atlantis.) Basically the Stargate is a system of a computer and the "door" part. This door works by bending space and time as we have stated. But it bends it in a controlled environment. Within the gate's circular space and the part where this time meets our time is called the event horizon. Or you could think it as how water and air is divided. The Stargate is built from a very heavy matter called Naquadah. It is an extremely good superconductor. Basically you filled it with energy and it will grow its mass and bend time and space. But if the energy isn't used up for creating the wormhole itself it will overcharge and blow up. So there is a safety function to stop that. It means the Stargate will do its best to find a way to the energy to be discharged. If you overcharge the gate it will redirect the energy to somewhere. And since these Stargates are connected the gate will wind its closest "friend" which will help it discharge the energy thereby stopping it from exploding. That is why the bomb works. Because it works within the rules of the Stargate's function and has little to do with the wormhole itself.
She should check out the complete series and talk about it later on as there is actually so much told us about how science works within this parallel universe we call Stargate "world". If you think within the rules of the show you can find that they actually miss really really small things and just very few times contradict themselves.
Also yaaaay for Red Dwarf. I love that show.
@@humorpalanta I really enjoyed how you explained that. As a fan it really explains the concept well to others. Like as you have stated the Stargate is producing an effect artificially and thus may not follow what we would initially think.
As some planets sizes are not supposed to exist, but they do, so our known science is just theoretical
Known science of wormholes... that is based on theories based on hypothetical assumptions. Sorry, but no. There is no KNOWN science to wormholes.
Also the Stargate is complex, and whatever it does is only understood to be a wormhole as we know it. It could be a completely different thing, but it is/was titled as wormhole because it theoretically looked, smelled and acted like one - so it should be a wormhole. Even though wormholes are so hypothetical that there might be different versions of wormholes, similar to black holes having different versions (small ones, solar system sized ones, merging black holes (though again just hypothetical and not discovered yet) and ultra mega sized ones). And yes, I'm talking about sizes, yet we have to even remotely find out how the black hole inner workings work on reality in order to differentiate every single black hole from another - we just don't have enough data to find any if at all differences.
The bomb idea is actually pretty good, because in previous episodes they have already discovered that if you discharge "energy" to a gate, it switches the wormhole to a different gate. Of course pure fiction, but it's internally consistent they even used it in later episodes too.
Yep. At least the science in their universe is consistent within that universe.
@@hawkins55 Yeah probably one of the best shows for canon and consistency.
You'd be surprised just how much you can solve with a bomb. 😂
@@inorite4553 It is the human way ;)
@@inorite4553 Not Ori invasions though xD
What an amazing series SG-1 was 👏👏👏 easily one of the greatest sci-fi shows of time...
'all'.
eh, not really. Most of episodes are about something being averted one second before timelimit. Atlantis was probably worst of them all and SGU was the best one. Yet because SGU was closest to being real, was not successful (also the fact there werent aliens speaking english and shaky camera and some really boring and annoying character background episodes...)
Sam Carter is SO AWESOME. One of the best characters in any SF show.
I love that she is so excited about science, hence her explanations because she is thinking it through as she talks. I also love that they subvert the 'geeky science woman' trope so completely as she is a total bad-ass. You can be a scientist, a soldier and a woman and none of those negate the others.
@@alangarde2928 i agree 100%. the excitement makes a big difference. some scifi shows today are too moapie and dark. real scientists are always excited about their fields.. it's something Hollywood doesn't seem to know xD
She was definitely big brain all the way.
One of the things that really bugged her was the fact that she was unable to solve the mystery of stargate travel without Daniel Jackson doing most of the work. How dare he be smart? I'm the smart one here.
@@protorhinocerator142 It's a small thing, but I love that part in the pilot where she introduces herself as "captain" to jack but "doctor" to Daniel. 😂 The scientists in stargate are always trying to prove themselves to each other and it's so realistic
Total role model for any child.
They actually established in older episodes that an explosion or large release of energy will affect the Stargate (which is made of fictional material) and disrupt its connection to another gate. So more a gate thing than trying to "blow up" the wormhole ;)
In terms O'Neill would like, they need to whack it with a really big wrench so it glitches and drops the call.
Yes thank you, I was going to say something similar :)
@@ssokolow hit a pinball machine and trigger it
I'm pretty sure the smaller star was a neutron star which drifted into the star system long ago, not massive or dense enough to collapse into a black hole. It was the reason the planets inhabitants abandoned the star system. Once it had accumulated enough mass from the larger star, it collapsed. Neutron stars get smaller as they gain mass increasing in density, so if enough matter is nearby, they'll eventually become black holes.
Came to the comments to find this i did drift in wast there a day ago when the malp first arrived they compare shots in the episode
22:25 This is actually based off of a previous episode where they learned a little more about how the Stargate works and found out that in case of a sudden surge in energy, the stargate redirects its wormhole to another stargate, like a breaker essentially. That's what they're trying to achieve with a focused blast of a bomb.
I watched this episode. The time dilation had to be re-evaluated so as to explain why the probe wasn't giving a precise image.
They are absolutely sacrificing that world to the black hole, too.
I recall a discussion in this episode about what planet to pick; as mentioned in 2001 or 2010 they have no shortage of brutally hostile lifeless worlds to choose from.@@ElvencloudYT
That makes a lot of sense. Still a serious decision to make since they may not know what the rest of the surrounding space looks like.@@jblitzen
It's already gone. There's no way to save it; it's doomed.@@ElvencloudYT
O'Neil wasn't being a dick, his whole character is that he's a layman military guy and Carter tends to talk to him as if he's a fellow expert scientist, which only confuses him. He has to constantly remind her that he needs a very basic, non-technical summary. He meant "stop with the technobabble", not to shut up.
Which is funny, because Becky falls into the exact same "trap". Granted she doesn't know about O'Neil as a character.
The O'Neil character deeply distrusts the SciFy aspects of his job, and tries to keep the science juju in bay to keep enough overview to for tactical decisions and action.
@@m.a.327 [Much different episode. "Nintendos move through anything" ]
His character is also that he is kind of a dick
@@toddhollen you obviously didn’t watch the show
The molecular deconstruction actually has an in-universe explanation: The wormholes created by stargates are Einstein-Rosen bridges with a bottleneck only large enough for a single atom. Because of that, they need to break things down to and turn them into a stream of single atoms to fit them through, and that process, as well as reconstruction on the other end, are handled by the stargates.
It also allows the stream to be sent at near light speed, if I remember right. Since a wormhole just shortens the distance between two points, it doesn't necessarily make it instant, so being able to transmit the matter at relativistic speeds also makes the whole process faster.
Except for the episodes that contradict that. In those, the gate stores the "pattern" of people and objects. Science fiction shows never stay consistent with the rules, especially with regards to distances, timelines, and speeds.
@@patrickmccurry1563 That's largely because different episodes are written by different writers. Tar Trek:TOS was apparently notorious for that. B5 was a tad different because the whole series had been pretty much written by Straczynski on his own. I know the last two seasons were a bit shite, but that was thanks to the studio. I liked the "drift" in hyperspace.
@@thhseeking Don't get me wrong. I loved Stargate. It just seems like science fictions and fantasy shows are more prone to some writers not knowing or even caring about the basic premise and rules of the show. Joss Whedon is notorious for just ignoring virtually everything for the "story" from episode to episode, in Buffy The Vampire Slayer.
Which in my head-canon explains why objects can only travel one-way through the stargates. Photons can travel both ways through the wormholes, but the builders realized that having streams of particles doing that would produce collisions that would ... _ahem._ So they set the gates to only allow the matter-stream from the initiating gate to the recipient.
To answer your blooper question, the SGC (Star Gate Command) is located inside of a US Air Force Base that is inside of a mountain and that is why there are so many military personal.
Infact the footage they took of the entrance for Chyanne Mountain Complex is of a real Air Force Base. I think they got permission to film the entrance for a few days and had to recycle all the footage they got anytime they wanted to show it. Otherwise, the show was mostly filmed in British Columbia, Canada.
About the Molecular Deconstruction, it was determined earlier in the series that even though it seems that you go through in one piece your body is actually turned into energy and then rematerialized by the receiving gate. Watch The Torment of Tantalus (Season 1, Episode 10) where they discover this information. Also to further explain how it works is in the Stargate Atlantis episode Thirty Eight Minutes (Season 1, Episode 4) where a puddle jumper gets stuck in the gate. The thing to remember is that these wormholes are artificially created instead of natural.
Well gate eat a lot of power and true wormhole is like atom size where first gate ar dematerializer and secund are materializer that alos why we dont see anything and why some energy go both ways bcs it bypass transport part of gate.
Freaking LOVED that episode! Thanks for sharing!
Interestingly, this is how quantum teleportation would theoretically work. You could break something/someone down into information, send them through a "quantum antenna" to a probe that you shot out into space thousands of years ago, and get reconstructed elsewhere in the universe instantaneously.(My knowledge of quantum physics is little to none, but that's what I got out of a physics professor talking about quantum entanglement and sending signals without breaking causality)
The worrm hole is an actual door. Plus we can't actually test gravity waves from here on eath. How can you say what we can see here is what it is there. You act like what you're saying is real but it's nothing but theory.
@shadowforgedgamerz520 I was also going to include 48 hours too, where Teal'c gets trapped in the SGC gate's buffer (Season 5, Episode 14), but I feel that one requires more context. Mostly due to all the stuff that had to be done to interface the gate with computers since the SGC does not have a DHD.
19:10 - To be fair, O'Neill isn't exactly a particularly "sciency" person, so it's entirely likely that he'd think a black hole is like a hoover.
Also there is a common trope at this point in the show where Carter over explains most things, and they have to ask her for a response that doesn't require a 5 minute explanation. This trope goes away as the show goes on. But it's not completely because the show moved past it or because it got old but also because Carter starts explaining things in a quicker fashion when not talking to one of the other scientists.
They were playing into the stereotypes back then. The science goes over the military types heads and the military types don’t have the time or patients to entertain the eggheads. And Carter being a woman, still hasn’t proven that she’s just as good of a soldier as the boys, she might break a nail or something. I mean, not quite that blatant with the second part, but it was there.
@@eds1942 They got over her not being a soldier in the first season (pretty quickly if I remember correctly). And the science in general didn't go over their heads unless it was something that was significantly harder to understand. It was mostly either Jack playing it off like he didn't understand to act cool or them not wanting to spend the time hearing the indepth explanation.
@@Gronmin I mean, Carter's explanations are in large part for the audience. Given her in-universe background, you'd expect her to have worked out that what O'Neill and Hammond really want to hear in an emergency is "I got this, here's the plan", and not a lecture on general relativity.
@@eds1942 Thumbs down to you for bringing woke politics into this!!! defiler!!! BOOOOOO!!!!!
There was an incident where SG1 were being attacked as they were escaping back to earth through the wormhole before this episode. The stargate on the other end took a hit from a ship weapon just as the last 2 went through the gate. This in turn forced the gate to jump to another gate and spat them out. It's why they suggest the bomb to get the wormhole to jump so they can close it. This tactic actually comes into play a few times through the series. Again, very much worth watching. It's REALLY good.
to put it in different words,
they basically overcharged Stargate, causing it to malufunction and jump to different gatem that did not have blackhole and thus could be simply closed
@@patrikmodrovsky1842to be fair they not destroy random world, they can but most of time overload happend gates just shut up and not jump so is alos why they can open it to this black hole gates when they blow up sun alos this gates was probaddy destroy by sun boom so black hole gates can still be active as a ultimate weapon xd
Ah yes, that time Captain carter was trapped on a glacier with MacGyver
@@Darlf_SevilWhen the gate gets overloaded it is the other end that jumps, so in this episode the wormhole end got bounced to a non-black hole planet allowing the gate to shut off
I love the outtake of that scene. @@ravengrey6874
In fact, in the teleportation section, in previous episodes they explain exactly this: in this case, the stargate deconstructs and reconstructs things because it only uses the wormhole as a signal carrier (whatever they use, I don't remember). I remember this explanation that crossing the wormhole is complicated due to the spatial variations within it.
I'm genuinely amazed that you actually enjoyed this. As a fan of the show, I'm well aware that a lot of the physics took a secondary role to the story, but I honestly never noticed that they did a lot of those little nods to tell you "Yeah, we know this isn't how it works as far as we know right now, but we're doing this."
as maniac i can say
star trek tech have own rules but many times acrors say random look like tech shit, they call it future tech bulshit in script and actors create it by themself. i like this show but at this point stargate is better.
They talk abaut tech and know it work no random pseuso tech bulshit, we know we dont understend some of this tech but think we understend parts of it or we understend this tech and we have rule who was break only by good reasons like atlantis, gates alywas try give own overload energy to other gates, and what is funny normal gate work overload them so they give energy to all gates in region to they slowly natural lose it. But but but in one episode machine who broke they enemy ftl block gates sub space communication and normal gate work overload them like alywas but gate cant give energy to system and after max time of gate can open wormhole they give that energy in only way they can.
By do nuck who can destroy 1-4/6 of planet earthe sizze
There was an SG1 episode where an alien was on Earth. His memory was messed up and he didn't realise he was an alien. So he had an Earth job as a movie producer. In that episode the alien was describing how in a movie when something is wrong they can fix it by "Hanging a lantern on it". Basically, as long as the characters acknowledge that something is wrong then the viewers will go along with it. 😀
THANK YOU FOR THIS. Stargate doesn’t get nearly enough attention. It’s one of the best sprawling scifi franchises on screen, but it’s been weirdly unacknowledged by the world lately
Too much truth for most muggles to handle! They don't like having their noses rubbed in just how wide the gap is getting between "muggles" and science "wizards." It's almost like two different species at this point......
The draw of Stargate that you don't get anywhere else is that they often recycle tech plot devices "oh, remeber X from two seasons ago?"
SPOILER:
Eventually they amass enough specific stuff (Multiple different unobtainium mines, lots and lots of test flights with Alien hybrid fighters, alien databases) that they _eventually build their own stellar navy._
Blame MGM, they're the ones who hoarded the franchise and squandered its potential. Now that Amazon has it, I'm hopeful for the first time in over a decade.
@@artweaver6963 well, sounds like your opinion is worth a trust
isaac?
8:18 the wormholes in Stargate SG-1 are not the size of the gate, they're tiny and only energy is passed through. So what the Stargate actually does is it turns matter into energy on one side then reconstructs that matter on the opposite side.
There's a whole episode where Teal'c gets stuck in the Gate's energy buffer due to a malfunction and they spend the entire episode trying to get him back.
Objects also have to pass completely through the event horizon before they can be deconstructed. There's an episode of Atlantis where a puddle jumper gets stuck part way through, and the people inside have a limited amount of time before the stargate automatically shuts off and they die from explosive decompression.
Because sometimes having an Iratus bug sucking the life out of you isn't quite enough peril.
The colonel is muscles and leadership. The major will explain in detail and confuse the colonel. A littel like start trek Data will give toooooo much info and everyone the short answer.
In another episode, they explained radio is two way while mater is oneway. Things like the star gate was invented by super aliens, and super aliens can create things that help the story flow easier.😊
@@tavdy79 One of my favourite episodes because of how it used the barely-working Lantean technology and the Stargates and made a drama out of how we poke at it and expect it to work perfectly every time.
@@carldawson5069 By "super aliens" you mean the Ancients, who are basically just humans.
@@brandbird yes, this the first episode for dr becky. There are so much she has skipped. I did not want to add to the need for extra explaining.
"you're gonna need a bigger black board love" absolutely killed me
21:30 That "disclaimer" is what I appreciate the most about the episode. Its a bit of a cop out, to be sure, but it also makes sense from a certain perspective. The premise of the show is at its heart that we have a device capable of letting us experience in real time situations and concepts that are just mathematical theories and speculation at present. I like the idea that not everything we would encounter studying and interacting with those phenomena are easily predictable and behave exactly as expected. It makes sense that our current understanding of black holes and wormholes is limited or inaccurate and needs to be updated and refined. I like this episode especially because it actively acknowledges that it isn't getting all the science right in a way that builds tension- 'this isn't behaving the way we predicted it will, therefore we don't know with certainty what will happen next or how to save ourselves from the situation'.
Plus, this episode was filmed in the late 90s, so they don't know as much as we do now.
The O'Neill Carter annoyance is amusing when you understand the relationship.
The will, they won’t they trope!
Yeah, looking at a fraction of a moment between them with 0 context would be confusing.
Stay Calm and Carter will figure it out. lol
@@Rummyson yup, he just does what Carter the brain says they need to do to make shit work. He doesn't need a full technical explanation of why. Just a dummys guide.
"You're gonna need a bigger blackboard love" would make great merch
20:47
That and "... And then a miracle occurs..." "That bit needs some fleshing out."
Get the sister on it.
I would buy it!
"Jesus Christ on a crosstrainer"
Her reaction - like from someone who has never seen SG before - to how Jack was speaking to Carter is interesting. He dare to speak with her like that because of their special and close relationship, he knew that she would get it - it was not rude, just desperate and she would forgive him. Their boundaries weren't same as among ordinary colleagues. It shows how well individual characters and relationships were build. Screenwriters played with a lot of details. That's why we all loved Jack and Sam and hoped they would become an official couple, although not much has happened directly between them.
He's her superior officer. It's not like being colleagues.
@@nyetloki But they were also very close, and also later in love.
watch the show@@nyetloki
@@dnoordinkI think Jack was in love with her here. Remember later episode reveal he actually quite into astronomy and has been from a child, so he almost certainly knew all the answers to the questions he was asking her here already.
As an astronomy enthusiast, he's likely more interested in looking at stars, sunspots, solar flares, etc. through a telescope than understanding their physics.
About the comment at 2m30s, I interpret the smaller star is a neutron star at this point to already super dense, and what we observe is it crossing the boundary from neutron star to black hole when it gets just enough extra mass.
In terms of the bomb, they establish in an earlier episode that sudden large energy spikes interfere with the Stargate and cause the mechanism within to switch connections to another functional gate.
or just shut off entirely depending on the situation. though it's kind of funny to think about them bouncing the black hole over to some random planet and everyone just trying to figure out why everything is getting sucked into the gate.
@@NoESanity Imagine it just jumping to the second gate in Arctic :D
@NoESanity it was the destination gate that bounced to another gate (the antarctic one) in a previous episode. So in this episode the destination was the black hole planet. So that switched to another planet so they could shut it down at that point.
@@lukdesmet1290 I believe the theory here is that the wormhole would destabilize entirely during the jump so it never actually reconnects to the next nearest gate, it just fizzles. Basically it was only holding since it was already open; once it was closed even for an instant the wormhole collapses.
@@void2258 Yes and No. As far as I understand it the SCG's Stargate connects to another Stargate and the Stargate connected to the Black Hole disconnects entirely. They use that same method in a later season to connect a Stargate to a Supergate by placing a normal Stargate next to it and using this tactic to force a jump because the Supergate would not be accessible to them normally.
You where so fixated on the "black hole" that you missed what Jack was asking, he was asking why do they call "worm holes" worm holes , as where did the word worm come from in "worm"hole", and that's why the apple is the perfect analogy...
If one day they meet one of the worms that built them, eating stars for nutrient and shitting black holes, now THAT is an episode I'd watch.
Also, while the folding paper analogy is probably better for instruction, it's been in SO MUCH Sci-fi at this point that it's nice to hear it a slightly different way.
And I think Daniel Jackson uses the same analogy of the paper for a wormhole in an other time
But t s always good to have more informations in those kind of video
To be fair you can't just jump into season 2 and expect someone to understand what's going on.
@@RRW359 yes but.. the whole premise of the shows is them going through wormholes and just this specific episode (and a handful of others) deals with black holes. They never equate the two
Dr Beck, I enjoy your videos very much. Please remember this is just a TV show. The characters in it developed over 10 years of interaction. This is the best Sci Fi show ever made. Please binge the series from the beginning, you will enjoy it.
In this episode of SG-1 the smaller star was actually a neutron star which was accretiing mass from the larger star and gains enough mass to collapse into a black hole. One of the assumption for "Gate Travel" is you step through one gate and immediately emerge on the other side. This is in contract to the original movie but eliminates the time consuming depiction of actually traveling through the wormhole. Because of this the episode assumes that some aspects of being close to a black hole are not dissipated by the wormhole, some are reduced but not eliminated, and some don't apply at all. Hey, it's TV, so sort of accurate and sorta not based on whether it serves the plot line. Part of the plot line is that they cannot close the gate which means they are continuously connected to the planet through the wormhole and that even though the wormhole is insulating them somewhat, the the effects of the black hole are slowly increasing so the "earthquake" is not from a gravitational wave but the gravity from the black hole continuing to increase through the wormhole (the same being true of the time dilation.
So some pretty good scientific explanations, some harder to believe or outright wrong explanations that make the plot work. From an audience standpoint they have heard of red shift so they will expect to see things shifted to the red and therefore looking red. Not accurate but much easier to explain than "the radio frequency was red shifted so we need to compress the signal so we can accurately see the picture." As far as spagettification is concerned, I think the people would get ripped apart from gravitational tidal forces before they ever reach the event horizon, or even get incinerated as they become part of the accretion disk and heated to millions of degrees as they orbit the black hole.
But sucked-in sounds so much better. I like your description of a black hole being like a Hoover vacuum cleaner though. Remember that in SG-1 the gates are at each end of a wormhole so if you destroy the gate at the other end of the worm hole you would effectively close the wormhole.
Any way, I like how you explain what is mostly accurate, what isn't, and why it isn't. Thanks for the reference to Red Dwarf, I was only able to see one or two episodes so I think I will binge watch the series to see what it is like.
I’m a diehard SG-1 fan, one of the people who recommended this episode and I loved every second of this video. Thank you for making it.
It’s a great show and a great episode, but also a very “that’s not how relativity works” episode.
INDEED.
@Nerd in Disguise it’s a really great show and I highly recommend it to anyone. The first season has some bad episodes but this is typical from 80s/90s tv, they need a season or two to get started. I also recommend Stargate: Atlantis, a spin-off of SG-1.
~6:00 there's an episode of SG-1 where an alien explains how they can travel to Earth so fast without a Stargate. The alien does the paper folding thing and Daniel says "You're talking about folding space". The alien looks at him, disappointed, and simply says. "No."
The Tollans, right?
To be fair, those guys were arrogant assholes with a massive superiority complex.
They weren't even aliens, just humans that were a bit more technologically advanced because they didn't have any "dark ages".
… only he used a twig instead. :-)
Should be I.16 "Enigma", I think.
czcams.com/video/Q-xp_styaXQ/video.html
@Nerd in Disguise I think the show is implying there is a mechanism of physics that humans do not understand yet.
@@BrokenCurtain I'd disagree with them being arrogant or superiority, I'd say it's more to do with them already being burnt by sharing their technology and their own planet being destroyed
The Paper Analogy you used in this video they actually use it in the show as well! Episode in question is called ”Enigma”, aired during Season Seven (officially episode 117). They even mention Shroedinger (Samantha named her cat that) in that episode :)
The To'lah episode, what a beautiful one !
You would probably enjoy many episodes of Stargate SG-1, Stargate Atlantis, and Stargate Universe.
While it likely isn't going to fall into the jam-packed-with-physics episode list, one of the fans' all-time favorite episodes and one that would make for a great reaction video is Window of Opportunity...
I legitimately jumped up and down like an excited school boy when I got this notification! I have loved this show for as long as I can remember. I also agree with my fellow commenters that you should give SG1 and Atlantis a go!
I haven't watched yet but expect it to be trashed haha
I did the same!
Yup all what you said…!
^
Don't forget Stargate Universe.
@@bmoneybby that's the best part! It's so self aware, that it invites being trashed .
As a massive Stargate fan, this was lovely. Thank you. I hope you find time to watch Stargate more. It really is a fun and imaginative show.
Indeed
Absolutely up until it became about magic ultra fundamentalist aliens taking over the universe. At that point, the adage, "any sufficiently advanced technology would appear as magic" definitely dominates the show. I loved the early infusion of legend and mythology into the alien visitation idea.
So with the molecular deconstruction it's a function of the stargate. It breaks you down, sends the atoms through the worm hole, then reconstructs you on the other side. The theory is that it protects you from the exotic matter holding the worm hole open.
Also from what I understand in the opening scene is a rouge white dwarf entered the system and drew matter from the larger star and became massive enough to implode and collapse into a black whole.
Please remember that this episode of Stargate aired on January 29, 1999. This is relevant both for the science referenced, and the way it was portrayed to the public. We've made lots of progress on both fronts in the last 25 years
O'Neill knows that Carter is probably the smartest person on the base. He puts a lot onto her because he knows for a fact that she can handle it.
Mhm, She's also a soldier, so he's not being rude or bullying some random civilian scientist. She's a trained soldier and is expected to adapt to stressful situations, including the stress brought on by other soldiers or her superiors. But it's also a way for the writers to convey how the viewer should be feeling about the situation, without it explicit exposition being directed towards us. Not everyone will follow the physics mumbo jumbo that's being thrown around. Sometimes they're talking about a solution, and sometimes they're talking about a problem. It can help if they make it clear to the viewer sometimes, which is part of the challenge of writing stuff like this. They can't let it be obvious that those lines are intended for us.
Smartest person on the base? On the planet more like. Rodney might give her some competition for science and engineering genius but she has him beat on social skills, military tactics and decision making. SGC collected the best the US had to offer, and they put Carter on the primary team as science expert. Later when SGC became more international she was still the best because by then she had more experience with alien tech than anyone on Earth.
Also notice that when there was a problem on Earth like this episode there wasnt a better scientist at home dealing with it, maybe too old or Ill suited for missions. It was still Carter doing the bulk of the smart person work.
@@TestTestGo Agree with the social skills, etc, but I think McKay had the edge on what could be termed "raw data", though HAVING it and KNOWING WHAT TO do WITH it ARE different. Sam could make a choice and run with it and Rodney might dither before making a decision(unless Atlantis were to blow up in five minutes if nothing gets done! Or you threaten him with an orange.).
The woman in this video is a bright example of ignorance when it comes to understanding how gravity interacts with the "Event horizon" of the Stargate.
That is why a true PhD title would compel the owner of the title to watch all SG-1 material before speaking on black holes and their interaction with an event horizon of a Stargate.
As both a die hard Stargate fan and an astrophysics enthusiast I love when the two worlds come together like this. It was shows like this and Star Trek that sparked the interest in astrophysics and now I have new appreciation of the shows when I re-watch them years later. Thank you for the insight.
Yeah stargate science Babel was ok but startreks was just a bunch of random science words stuck together hoping the audience would nod theirs heads and agree
@@davidgraflex2065 Well the Heisenberg Compensator was the key component of star trek transporter that rectified the Heisenberg uncertainty principle. Quite clever really and deliberate not random
The absolute highlight of my year is finding your channel. I don't understand everything but you do make facts easier to relate to... including humour. That's helps !!
There was another episode in which they explained also. The subspace wormhole is affected by blackholes. And in a previous episode the gate from where they were leaving was hit by an energy weapon and it jumped to another one
One of the things I love most about the Stargate shows is the actors they hire for the scientists are often the ones pushing the hardest for as close to accurate science as an episode will allow, Amanda Tapping is notorious for this, and I think David Hewlett who plays Rodney on Stargate Atlantis was the same way
Like the space time of the two wormholes is connected so if one side is overly twisted by extreme gravity it will twist the connected worm hole. The twist is the origin of the gravity. "Mass twists space time making gravity."
When O'Neill tells Carter to "stop with that" at 17:55, he's not telling her to shut up. He's telling her to stop using technical language because he doesn't understand it. It's established throughout the show that O'Neill's brilliance is being a grunt and military knowledge, not science. One of his "things" in this show is to not understand techno-babble. He just wants a straight up average Joe layman's answer from her that he can understand.
Rewatched the episode with the Ashrak on the Alpha Site and Carter is explaining how they can shift him back into visible light, O'Neill stops her and asks "are you saying you can make the invisible guy visible?"
"Yes sir"
"That's all I need!"
@@charliekelly7024 I absolutely love Stargate SG1! And I love O'Neill and Carter's banter!
O’Neill was an astronomy buff so he wasn’t totally dense. But he certainly didn’t have the science chops of Carter.
Also O’Neill and Carter are kinda sweet on each other. So she knows he isn’t trying to be insulting .
Throughout the show the two characters address this fact but never do anything about it…on camera.
@@technopirate304 Which is the most annoying thing ever!!!! On one hand I wish they had let them get together on the show! but on the other hand i'm kinda glad they didn't because what if the messed it up . . .
@@JDStone-jg8cg Once he got promoted out of the SGC, perhaps they could have been together. We will never know.
This is so cool! I've been wanting my sister (she's a physicist) to watch this episode and tell me her thoughts about it like forever. She hasn't watched it yet so this makes me happy enough. Thanks!
Sorry if you have already been flooded with this sort of message. The bomb didn't do anything to the wormhole. The stargate is able to convert almost any sort of energy into a useable form of energy for itself. When they detonated the bomb the stargate absorbed a massive amount of energy. One of the safety protocols in the stargate is when their is an active wormhole and it receives a massive influx of energy it dissipates the energy by dialing another stargate.
Well, keep in mind that the Stargate is alien technology that they are still learning about with their limited understanding of physics. I am glad you enjoyed it. One of my favorite episodes.There is also an episode where O'Neill and Teal'c get stuck in a temporal loop. Pretty funny episode.
The temporal loop episode was hilarious to me!
S4 E6 Window of Opportunity... I love the Groundhog Day trope in all shows
Instantly reminded me of O'Neill holding up the plate with the face he painted on it with ketchup / mustard lol. Great episode.
A fanfic "Xander and yet ANOTHER Demon available on Twisting The Hellmouth, has Carter muttering about how SHE would like to get in one of them as O'Neil and Teal'c are now on a par with Jackson in understanding/translating Ancient and some other stuff because they spent the time learning this. Darn time loops.
@@unixfreak The part were O'Neill and Teal'c were "golfing" at the bottom of the Stargate ramp, and Gen Hammond says something to Jack and he retorts: "In the middle of my back swing!!" Oh that was so good. Oh yeah! When Jack shows how crazy he feels about being in the loop and paints the plate with the ketchup and mustard on it: ... "three french fries short of a Happy Meal!"
I always assumed that the bright star in the beginning was supposed to represent a neutron star that had just siphoned off enough mass from the companion to complete its collapse into a singularity. It's the only thing that makes any kind of sense.
Yeah, I always figured it just pushed the Chandrasekhar limit and collapsed into a singularity
@@jackmeowmeowmeow2177 Chandrasekhar limit is the maximum mass of a white dwarf. The maximum mass of a neutron star is the Tolman-Oppenheimer-Volkoff limit.
@@matd675 you are right I mixed the two around lol
I think there is theory that as density increases neutrons star might colapse into quark star and progres towards Black hole, but more likely, for specific scenario would be IF randoms Black hole was on coliding course towards whatever solar system they wisit. Just imagine what migt happend IF it traveled towards specific planet in speed around 0.1c
That's exactly what happened but I'm not entirely sure she was thinking from that perspective.
I watched a few videos of yours about a year ago, and forgot to subscribe. I'm really glad I found them again! Love your reactions!
I've just subscribed. Loved the video, loved your enthusiasm and energy, loved your commentary, awesome, great to have this sort of thing discussed.
The sci-fi explanation of the stargate is that it is creating a “artificial event horizon” and deconstructs matter and transfers it through a small wormhole as energy. Which is supposed to solve some issues around partial transmission and atmospheric differences (it buffers distinct objects based on some criteria and sends them in as a ‘unit’)
Thank you, yes
It actually sends things as atoms rather than energy. That's what allows them to dump a heavy element into a sun in one of the episodes.
Which, in my opinion, makes it different from teleportation because your actual atoms are used to recreate you rather than the energy from your atoms.
The show explains that the artificial event horizon doesn't send things that pass through it until it detects the item has completely passed through one side. So it decompiles the item at the origin, sends the raw materials as a coded to packet, and rebuilds it at the destination complete with orientation and momentum.
simple way to put is you get turned in to an IKEA Flat pack and shipped via wormhole to another stargate and hope nothing gets lost as there are no spare parts.
@@phalanx3803 I appreciate this explanation far too much. Thank you!
A lot of Star Gate episodes are pretty science-filled. Maybe a Stargate: Atlantis episode next?
Atlantis is by far my fave lol I second this
I feel the Stargate franchise moved away from scifi and more into fantasy territory as time went on, which was a real shame. I can't really think of any serious science in Atlantis
The episode where Rodney destroys a solar system trying to draw zero point energy from an alternate universe?
@@brandonstevenlesher1964 This is exactly the kind of gibberish I was referring to
Stargate was best when it was like Star Trek :p
This is the episode that genuinely made me terrified of black holes...
That image of the MALPs camera seeing the black hole in the sky is what did it as a kid.
Like I love the franchise but this one episode urks me to watch.
Loved this episode! I really enjoyed SG-1 and while of course there was a lot of Fiction in their sci-fi, they also worked hard to get some good science in there too. Amanda Tapping was a brilliant addition to this series.
I could see how not knowing StarGate, but O'Neill and Carter's relationship is all about her explaining the science and him just blanking out. Its a theme. Also, I think explaining how a hypothetical worm hole would handle hypothetical gravity of a black hole near a planet was a bold choice.
Also what O'Neill is doing by demanding a simple explanation is reminding Carter of the stakes so she doesn't become to excited like the Doc said she would in that situation. It's for the viewers benefit but it's also a way to keep Carter focused on finding a solution instead of only exploring the problem.
They did that, so the show wouldn't go super technobabble like Star Trek did. Rather than Carter going full technobabble, she would say something rooted in real science, then before the technobabble could start, O'neill would go "I just need to know if it will work if I press this button". Carter will say "yes", O'neill would say "thank you", and there wouldn't be any more technobabble. That was a great way to do it too...it avoids the absolutely ridiculous dialogue that happened in shows like Voyager.
Science is like religion.
The more people know about it, the easier it is for the scientist to get rich.
@@reasonerenlightened2456 What in the heck are you talking about?
@@StormsparkPegasus
I would prefer to be a billionaire on earth than to explore other planets.
One thing worth bearing in mind when watching any Stargate episode is that at the core of the franchise is Arthur C. Clarke's Third Law: "Any sufficiently advanced technology is indistinguishable from magic."
You know, you're absolutely right. The Go'uld use that explicitly as the basis for their powers.
5:20 I'm no expert but one atom can affect a second atom via quantum entanglement and the spaghettification or folding action whichever the case aren't applied on any of these effect.
Carter is my favorite scifi character hands down. She gets so much depth and growth in Stargate and it's spin-off Atlantis.
I liked Mckay better from Atlantis, he's has more depth character wise IMO, but theyre all great, this next to Star Trek is one of my favourite series.
Miss the show deeply. Carter / O'Neill thing was so fun. Atlantis was great too. Too bad Universe flopped tho.
Yeah, it's a shame Tapping moved on after just one season on Atlantis. :-(
@@oldkid8811
I liked the Stargate Universe series too
@@oldkid8811 I loved SG:U, but there was a little too much soap opera and not enough adventure.
Re: the redshifted image, I think they were saying the camera was further up the gravity well than the people so the light it was capturing was red shifted. Honestly not sure if the distances involved would make that any more plausible but it’s at least different than the transmission being red shifted.
this is precisely my thought, trying to find anything in terms of what a camera at relatively close range to a black hole would do to the light it captures would suggest that it would red shift just like how the telescopes would. So the amount that time has dilated on the planet and how much it's shifted. Stargate explained the signal red shift already, i honestly didn't think they were talking about the signal being red shifted would cause the image to be changed, just the fact that there is already so much gravity and time being warped and stretched, that the light reflecting off the objects and people that camera is pointing at is being slowed down considerably enough to give the camera a heavily redish image, i'm sure the sensors on a camera would accurately show that.
For the light on the planet to be redshifted enough to cause what was shown, the gravity would be far too great for anything other than EM to survive, we wouldn’t have pictures of people to transmit, and the MALP itself would probably not exist.
The slow frame rate was far more realistic.
I suspect it was a graphical decision by the designers - basically, if it is red shifted it must be red right?
The red shift is relative. If you're standing still, as the camera is, you don't perceive the red shift. It's only when you transmit the signal to an observer at a different time-relative distance that you perceive the red shift.
So yes, only the signal gets shifted, but not the image itself even if the camera was just outside the event horizon (and survive the spaghettification)
@@dannyravelo1401 you gravitational redshift doesn’t require either the object or observer to be moving. The frequency shift will vary depending upon where in the gravity well the object and observer are located.
This episode was a lot of fun; I like how this episode is revisited down the line as a resolution to another problem, in part because that stargate next to the blackhole seemed to still exist, and could still work.
I am so glad that you liked it. SG-1 is a show that I watch every 2-3 years. I take a week off work and just chill in the living room with my wife and enjoy the good and bad.
Like you pointed out a few times they do try and get most of the stuff right, even if they occasionally they break the rules(like when showing the red shift and explaining it).
And the whole basis of the show is messing with stuff we barely understand.
Capt. Carter: Everybody is going to die soon.
Dr. Becky: WRITE A PAPER RIGHT NOW!
Jack's head would probably explode if that happened.
O'Neill: An obituary?
It would be a long time before she could publish.
This is addressed in the episode. Right at the beginning, Carter wants to study the effects of the black hole on the SG-team as normally that would be impossible and Jack says, "We are watching good men die in slow motion, Captain!"
Red Dwarf:
- S 4, Ep 4 “White Hole” (plays pool with planets).
- S 3, Ep 1 “Backwards” (time runs backwards).
- S 6, Ep 6 “Out of Time” (meet their future selves)
So what is it?
@@vincentpelletier57 I’ve never seen one before, no-one has, but I’m guessing it’s a White Hole.
@@jsytac a *white* hole?
Stasis Leak
Also "Future Echoes" (seeing future events "echoed" back into the present).
I love your reactions to Carter explaining things! I feel you so much....
"You'll figure something out" is actually a recurring theme in the show, and there are sooo many bloopers of Amanda Tapping (Carter) mocking Richard Dean Anderson like:
Me? You've been McGyver for a decade, here's a hairpin and a bit of chewing gum. YOU figure something out.
"Why the Molecular Deconstruction?"
From what I understand about Stargates, the Wormholes between the Stargates are very small, so the Stargates do Teleport stuff through the wormholes because otherwise stuff is just to big to fit through the wormhole.
They deconstruct you, then send the data through. Then reconstruct you. They wait for all the matter of an object to be deconstructed. They often talk about the data buffer.
I assume it has to do with the fact that they are one way. So things don't collide in the wormhole, but idk.
@@dynfoxx but radio and subspatial signals can pass because they are simple waves that will fit in the tunnel, they should also be dismantled, but the sack has a special protection so that A waves do not mix with B matter so that they pass completely
Yup, the "event horizon" of the stargate is NOT the event horizon of the wormhole. (it's possible to make the puddle without making a wormhole). It's just an energy field that de- and re-materializes things from and into its buffer. So you can stick an arm in and pull it back out, but once an object enters completely, the gate will try to send the packet through.
@@dynfoxx Remember the episode where Teal'c got stuck in the buffer due to the origin gate being hit with an energy weapon or meteor.
@@Darlf_Sevil The Stargate actually understands the relationship between objects so if you are in a shuttle it doesn't recombine you into the shuttles hull on the other side, it places you exactly where you were standing. It also understands certain things pressing against the wormhole like air aren't trying to enter. It also refuses to allow you to go to certain places that are dangerous like if there is Lava on the opposite side.
It's fun hearing Dr. Becky react with the same excitement and frustration that Daniel Jackson or Sam Carter have with the military guys trying to keep them alive. It added a bit too the realism in a different way!
"Imagine a day trip to Saturn." A level of enthusiasm that I adore!
It’s really quite amazing they got so much right over 20 years ago when black holes were still pretty much a glint in Steven hawking’s eyes
Hawking studied quantum theories relative to black holes. The gravitational theories of black holes and wormholes are decades older than that.
Just some fun Stargate lore: If I remember correctly, the "molecular deconstruction" isn't necessary for wormhole travel, but it was a safety feature installed by the Gatebuilders to protect against the unlikely event that the wormhole disconnected while a traveler was en route.
21:50 that exact tension you're talking about is one of my favorite things about this episode! Especially for Carter's character. She's fantastic as a scientist, but not losing sight of the greater context is an important part of that, especially for someone who is also military. O'Neill says in response to her enthusiasm about that fluke of relativity that lets them see what's happening back on the planet that "We are watching good men die in slow motion, CAPTAIN," and as much as I don't like the "shut up, Data" of some of it, I like the sobering reminder that there's a human cost to the fascinating discovery of the week.
By the way, did anybody else feel like the Jack and Boyd connection was a bit tacked on?
Same with Kalowski. They didn't really build on many of the people outside of the major characters, so the random connections to other soldiers was always a bit "tacked on".
Well, technically the Kowalski connection was a throw back to the movie lol
@@GueCalColombianTropicals Yeah. I mean, as the second highest ranking military officer on the base, O'Neil would have in-depth knowledge of most every person on that base, and would more than likely have had personal connections with many of them. Unfortunately, for a show of this type, they can't really explore all of those connections every episode, so it is left up to assumption that they had some kind of relationship not seen on screen.
They definitely needed someone of personal consequence to die… but also for them to be throwaway...Boyd is the equivalent of a Star Trek redshirt 🫡
I don’t think the frequency was shifted, but the time dilation delayed the signal so much that the code didn’t register at first. As for the explosion they finally went with, that does not destroy the wormhole, a previous episode established that a blast directed at the outgoing gate, will cause the receiving end of the wormhole to jump to a different gate.
Well technically frequency is a measure of occurrence per unit of time. So if the transmission is getting delayed, i.e. is arriving slower, than the wave by definition would have to have a lower frequency. E.g. if normally the wave is 1 MHz and it's arriving 10 times slower, it's going to appear like it's a 100 kHz signal.
"Carter, That's my side arm, I swear"
Or the signal was fine but the light the camera on the MALP was red shifted.
Delayed or shifted, it's synonym in this context.
@@aarond0623 I agree and this would result in the transmitted signal being shifted so low that the receivers at the Star Gate Command would not have been able to receive the signal (out of the band pass filters of the receiver). This means that there would not have been any information received at SGC and possibly no episode. Work your way around that, screen writers!
Man is it refreshing listening to you explain science. Thank you for your work. There are very few channels i can go to and get an explanation of something without having to worry about "truthfulness".
I have loved Stargate for a very long time and have watched the whole lot several times. Thanks for including it, fascinating analysis. I love the Jack/Sam dynamic..... 💗💗💗
"Think of something."
Actually in the case of Samantha Carter, that might have been the nicest possible thing Jack could have said to her.
She's a Tony Stark tier problem solver who always somehow comes through with a theoretical solution or some amazing technological breakthrough. She has invented countless gadgets and devices using reverse-engineered alien technology and improving it. As we will see, she most definitely will think of something.
Damn! Tony Stark is like Jack and Sams love child!!
Yeah, Sam Carter was actually a really good female role model that I have no problems with my daughters watching and emulating. She's almost never used as a "hot chick" stereotype. She's a brilliant scientist who can solve all kinds of incredibly difficult problems and can also hold her own in a fight. Her character also avoids the overtly ham fisted feminist "I'm literally supwewoman" tropes that a lot of times make other characters seem out of reach for regular people.
@@blackhawks81H Amanda Tapping that plays Samantha is quite outspoken on women's rights, and I'm sure was a big influence on how her character was developed.
By this point in the jack completely trusts Sam
Sounds like she's a regular MacGyver.
I love how Sean Carroll puts it, "time always passes 1 second per second locally"
Btw SG1 is what got me interested in science and space in the early 00s
Did you not hear about Star Trek?
@@seanbirch So idk about him, but my parents hated Star Trek, but my dad loved Stargate, so growing up no, Star Trek didn’t get me interested cause I never saw it.
@@jmwoods1995 that is very sad
@@seanbirch I don’t think so.
@@jmwoods1995 aww, poor you
There's something to keep in mind in Stargate- the humans don't *actually* know what it is they use to traverse the long distances. They have some ideas about wormholes and/or teleportation, but at least in the first couple seasons or so that I've seen, there are sometimes where people on the team get to ask aliens about how they work, and the aliens essentially say that they'll figure it out when they're ready.
However, they do get to ask about Einstein-Rosen bridges, which are the most basic and well-theorized concept of a wormhole idea that we have, the classic spacetime-folding/bridging wormhole you use in your paper example. The aliens tell them no, it's not that.
So, unless something in a later season retcons this, wormholes are not what the Stargates are.
I would love to see you come at it from another angle actually, just for fun, and try to draw conclusions based on the reality that SG-1 and the other team is experiencing here. It's a very weird reality indeed, and I would love to see you try to make sense of it sometime through that lense of, "If this was non-fiction here, what could we hypothesize to be the mechanisms of how the gravity well has propagated beyond the Stargate devices."
I'm not usually one of those people who takes a fiction universe on face value in order to come up with fantastical explanations for all the things going on, rather than just the obvious scientific inaccuracy, but I'll admit it can be fun and thought-provoking. For the redshift in the image data being transferred, is there some type of analog data that *could* be redshifted??? What if their transmission is something custom built to carry scientific data in a novel way? What might cause such a redshift in the data?
Just food for thought. :P Good video as usual, Dr.
Ah, yes. Good point.
Folks who watched the show would know, but new viewers might need to be told that the Stargates were not created by humans.
They're an alien technology, found on loads of planets throughout the galaxy, built by an ancient alien race (literally called "the Ancients") who built and used these devices to move around the galaxy.
And, like, the humans just discover the one that was left on Earth, reverse engineer how to make it work - to create the wormhole and "dial" different planets - and then use it to explore the galaxy.
It's another one of the cool things in Stargate. It was set in the present day and human tech is present day tech.
(Indeed, part of the long-running plot of the show is that they're looking for alien tech, in order to protect the Earth from some nasty aliens they've encountered out there, who are more advanced and we couldn't possibly beat with our present day tech... unless they go out there to find new alien tech and weapons.
This is why the government / military are happy to run this programme to explore the galaxy, they want weapons to fight the nasty aliens who will inevitably defeat us, as their tech is more advanced than ours.
Later in the show, they do start building spaceships with FTL capability, thanks to reverse-engineering alien ships attacking Earth. But it's a nice premise in the show that, no, the humans don't have advanced tech. The Stargate is just alien tech they've found and barely worked out how to operate.
And this aspect is played on in the plot too. Like, the aliens have their fancy laser weapons, but the Stargate team fire ordinary bullets from their military P90 (a real gun). But this does sometimes give them the advantage, as their enemies are expecting and defending for energy weapons, not just the pure kinetic energy of a bullet.)
Basically, this is perhaps the most realistic of the major sci-fi shows. Because the sci-fi comes from all this discovered alien tech that they encounter, not from any imagined leaps in human tech.
Thank you for explaining it in simple terms. I wish you where my physics teacher in when I was in school.
Ah Stargate SG-1. I remember watching the entire series a long time ago. This show was so entertaining. I find you did a great job explaining the scientific dialogue. There are many episodes like this one. By the way, you have been an inspiration for me to continue my doctorate thesis, even at my old age. Keep up the good work.
It's never too late
She got me laughing when she was talking about Jack being mean to Sam. She doesn't realize their background relationship. lol
Obviously she doesnt, she jumped right into this episode instead of watching from the beginning.
I know lol
You take the whole fun out of it. :) Thank you for your explanations.
I love these, they show the more personal side of you while teaching us stuff. I guess I was sucked in with the idea that black holes do just that. Now I know better.
Stargate is hands down one of my favourite franchises of all time! Everything about it is top notch, so it's great to get a reaction to an episode!
One of my favourite moments is when Carter ends up blowing up a star! It becomes one of my favourite running jokes in any show! (Season 4 Ep 22, if I'm not mistaken)
"You know, you blow up one sun and suddenly everyone expects you to walk on water."
-Carter
i love Stargate too :) 👍
Part of why I loved Stargate was because of what it wasn't.
It wasn't set 300 years in the future in a world we can barely recognize.
It wasn't Voyager/Gilligan's Island where you know you're just never getting home. Too many teases.
Stargate takes place in present day, operating out of a secret underground Air Force base, with a notable learning curve at the beginning of the series. As the show progressed, they found key technologies and important artifacts to help them protect the Earth from alien threats.
Nor did they take stupid chances. When first visiting a new planet, they would send a MALP to get some video intel of what's all there. Only then would they send real human people through the gate. It was still plenty dangerous, which is unavoidable, but they didn't constantly stumble into moronic problems.
Not a lot of dummies on the show. Not even Jack. He may not be the techie but he knows where his specialties lie.
McKay upped her by destroying one star system (ok, five sixths of one).
@@protorhinocerator142 The only real problem I have with Stargate is that they never explained why everyone in the universe speaks English, I mean a simple thing like the gate builders built in a universal translator to anyone that travels through it or something of that sort would have been good. That and 3 shots of a zat demilitarizes objects lol
To give the writers their due, they did establish the "massive amounts of energy make active stargates jump" thing in the first season. Within the world of the show, it's a quirk of how the stargate creates an artificial wormhole rather than a fact about wormholes in general. They didn't conceive the rule purely to drive the plot of this one episode. The charming thing about the show is that they do try to keep things consistent with themselves. The wormholes jump thing is used in a number of episodes.
There’s a wonderful scene in Red Dwarf where cat passes through a dimension and asks “What is it?” and Dave explains and Cat says “What is it?” and there’s another explanation and Cat says “What is it?”
I grew up with this show and my husband and I love it lol. I’m so glad you reacted to this
For a moment I thought this was going to be about the time loop episode - Window of Opportunity. (which I love so much!!!)
But this episode is clearly more relevant to the channel.
That episode is SO funny, and fun.
Window of Opportunity is great! It also semi-canonizes Carteill :)
SG1 Fan Favorite
In that episode not much science just fun.
How about the episode where all kinds of SG teams arrive from parallel universes? :)
If a Wormhole "Connects" two points in space, making them act as if they were adjacent (Paper analogy) then a Black hole near one End of the Wormhole would affect the other end of the Wormhole, as they are functionally adjacent.
Or, the warping of Space-Time occurring at one end, would warp the Space-Time of the other.
This is not at all clear from the mathematics that give rise to an Einstein-Rosen bridge. We don’t actually know enough about what a theorized worm hole would be like to determine whether or not gravitational effects could pass through. We don’t know enough about gravity itself either. But it is an interesting premise to play with in sci-fi.
I think it’s unlikely that gravity would pass through, but I can’t say it wouldn’t. For me, that was one of the more interesting ideas of this episode, it’s pushing the limits of what our theories currently imply. But, I think it’s in the category of plausible but unlikely, aka improbable, should we discover that wormholes actually exist.
@@geoffstrickler This is what bugs me so much. We barely know anything on wormholes. We are basically at the point where we acknowledge the possibility that they exist but at this point we don't really know what they are and how they function. It is like looking at a car and seeing that it can move by itself and understanding that it uses energy to move but stating that it cannot create energy because it uses energy itself meanwhile braking to create energy is a thing. (This is a heavily simplified metaphor.)
So at that point I was so sad. Feels like she had learned that she could but she is missing the imagination to create something new.:/
I totally agree with your point, and was moderately annoyed someone had already made it. My addition being that the Stargate has been shown to have a 'safety' function that actually generates a fair amount of 'suction' to ensure a body moving through the event horizon continues to move through. That way, no one gets stuck. If, say, their right leg is dematerialized and they stop moving halfway through the 'step' that takes them in. The Gate would continue to pull them in, regardless of whether or not they're still technically moving. Even a small amount of 'suction' by the Gate itself would exacerbate that effect of space being expanded or duplicated through the wormhole.
I kinda thought the same thing. If this bends space, so that you can walk through from one point to another without violating the speed of light, then that space is effectively right next to you. If gravity is impacting space that’s right next to you, I would think the gravity would effectively be right next to you and thus be able to affect you as well with the next moment when that gravity moves at the speed of light to you. But again, wormholes not being understood and theoretical, I can’t say. All I can say is I don’t know that we have enough information to poo poo the concept out of hand without more information.
Not trying to bash on anyone for thinking it could or wouldn’t happen, just saying I’m not sure I’m on board with dismissing the possibility out of hand :)
@@geoffstrickler I don't think Gravity would "Pass through" as it is not a physical thing, like radiation.
It is a property of mass that warps Space-Time. An effect that warps Space-Time, should affect both points, if they are "Functionally adjacent".
Listened to your first book, now listening to your second book. You make it all so fun and seem so simple to understand. I wish everyone could understand it the same way. As for Stargate, I am not sure how much science there is in the episode to review, however, I do recommend you see Stargate SG1 season 4 episode 22 : the one where Sam dials this blackhole via the gate, and uses it to blow up a sun. :)
This was really good. I honestly am probably a physicist, in the end, because of this show and Amanda Tapping (Sam Carter). I re watched this show from the very beginning when I was at the crossroads in undergrad between a lot of different paths and this definitely swayed me toward that of physics.
The bomb solution comes from a previous episode where an explosion went off behind the team, and cause the wormhole to send them to the wrong location. It probably won't actually work that way, but even in-show they don't really know how the Stargate actually works.
Actually it wasnt as much an explosion as it was a blast from an energy weapon, something vaguely similar to a staff cannon, hitting the gate.
Yes. There’s a lot of continuity in the show regarding their developing understanding of how the gates operate. It’s still enjoyable and basically understandable at the individual episode level, but you occasionally get ones like this where the solution depends a lot on technical details that have been set up over time.
If Dr Becky wants some fun entertainment I would definitely recommend the first seven or eight seasons of SG-1, and also the British SciFi comedy Red Dwarf.
@@builder396 Yes, but the point was to demonstrate the reason for the resolution.
and at this point they couldn't just phone Thor up on his cell phone. (probably O'Neill hasn't even MET Thor at this point).
@@andrewmurray1550 that's much later in the show
I'd like to point out that the magnitude of the gravitational waves that have been detected on Earth is so small because of how far we are from the sources of those waves. The intensity falls off like 1/r^2 and, in this fictional scenario, the distance between the SGC and the source of the gravitational waves is more like the distance between the earth and the sun (because of the wormhole).
Yup, for example in the GW190521 detection it was 9 solar masses spread across the surface of a sphere 17Mly in radius. I'd say what we've seen in that episode was plausible.
@@dwightk.schrute8696I agree it’s plausible. As I said on another post. We don’t know enough about gravity, or theorized wormholes to make any credible projections of how gravity would/wouldn’t pass with through. I believe it’s unlikely the gravitational effects would pass, but not impossible or implausible. Plausible but unlikely, IMHO.
However, I think it’s a great premise to play with in sci-fi, and one of the really interesting parts of this episode.
The "video image was red-shifted in color" seems like a plot point that was written because a TV exec was confused about how red-shifting of a radio signal works.
A real life example of time dilation is the old video cameras with the hand crank. When the photographer would crank the film through the camera faster, the playback would appear slower, and when the film was cranked slower, the playback would appear faster.
Yes the Stargate works like the transporter on Star Trek, It breaks you up, sends your information through the wormhole. The other gate reassembles you. That's the reason gate travel is one way on Stargate, but two way for radio waves.
Yes, that is yet another 'error' she claimed to find. Every so called error she called out, Beck was actually wrong. I go through them in my comment above.
Right. Telal'c gets stuck in the "buffer" of the stargate in one episode. -DS
Neither star trek or star gate are just sending information. They both transmit all your molecules.
@@nyetloki That's not right, Both systems convert your matter into energy and that is what is sent. They are not sending your molecules as matter, no matter is sent only energy. Which is then converted back into matter at the destination.
@@KerbalSpaceCommand explain the episode where they deposit matter in a star by cutting it off mid stream then
A question around if this is possible.
1) the "smaller" star is a neutron star; either a nova long, long ago or a capture.
2) The light is the stellar matter fusing at the accretion disk.
3) The transition to black hole is the result of acheiving critical mass.
4) The planet either recoverd from a long-ago nova, spiraled in since the nova, or it was a capture and so no nova to worry about.
9:20 Just to clarify: An analog TV signal could be "red shifted" due to time dilation, depending on how the color signal is encoded and decoded. Usually you don't encode Red, Green and Blue but instead use Hue (angle on the color wheel, so to speak) and Saturation. A small error in frequency could easily shift green to red. The modulated data is just as affected as the carrier signal.
An example where a frequency shift nearly disabled decoding of *digital* data (even though the reciever compensated for doppler in the baseband) was the Huygens probe. It's easy to forget that the modulated data stream ontop of the carrier also suffers from the same frequency shift - and the designers of the decoder on Cassini DID forget this.
The NTSC color system in use in the U.S. at the time of filming the episode was famous for messing up colors with even the slightest error in tuning and calibrating the reciever correctly.
SG-1 and Dr. Becky!! 2 of my favorites!
This episode is 20+ years old. I'm sure the science has advanced since this aired.
Rather then the Universe expanding; it makes more sense to me that the entire galaxy is in the gravity well of the super massive black hole in the center of the milky way and we are the ones red shifted from anything else not in the same gravity well galaxy as us.
The noises computers make when they are handshaking certainly don't sound like a 4800 baud Hayes modem anymore. :-D
"White Hole" - An episode of Red Dwarf that involves the crew playing pool with planets to escape the effects of the titular white hole :)
What? Not the Red Dwarf episode where they were reversed in time? "We're having a barroom tidy" and Cat coming back from the bushes with a horrified expression...
What is it?
@@stuartmarks7424 I’ve never seen one before, no one has, but I’m guessing it’s a white hole.
That title is begging for an adult rated parody
@@stuartmarks7424 So what is it ?,only joking.
Please remember that this episode aired on January 29, 1999. This is relevant both for the science referenced and how it was communicated to the public.
I do remember this episode, been watching stargate about 15 years ago when i was like 12 years old, and even then this part about the explosion seemed weird.
Well, as a man and a boy back then i love looking at things blow up :))
Dr. Becky. I do have to stand up for the show on one thing: They do know the difference between the black hole and a worm hole. They mess up a lot of the physics, but they don't claim wormholes and black holes are related.