Gravitational Waves Explained
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- čas přidán 31. 01. 2016
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Have Gravitational Waves finally been detected by LIGO? Physicists Umberto Cannella and Daniel Whiteson explain what they are and why they'll cause a big ripple in our understanding of the Universe.
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More at: phdcomics.com/tv
Produced by Umberto Cannella
Narrated by Daniel Whiteson
Animated by Jorge Cham
Written by Umberto Cannella, Daniel Whiteson and Jorge Cham
Special thanks to: Aidan Brooks, Flip Tanedo and LIGO
Read the comics at: phdcomics.com/comics.php?f=1853
This work is licensed under a Creative Commons Attribution-NonCommercial 2.5 License. - Krátké a kreslené filmy
Man. This makes me want to pick up a paper and start researching again!
Wait. That's precisely what my adviser wants me to do...
Listen to your advisor. Do more research. Keep on doing your PHD. Stay on as a Post-doc. Keep on listening to these sublimal messages. Ignore the fact that this is a youtube comment, this is not your advsior paying some bloke on the internet to say this...
maybe you could start researching the space fabric that the gravity waves are rippling, see if you ever find any ! because you won't, it's not real and neither are gravity waves
WAIT DID YOU EVER FINISH WHAT YOUR ADVISOR WANTED YOU TO
@@amaris338 I got my PhD if that's what you are asking
Great video
gravitational FUCKING waves confirmed, I love that
+haghalam0 I KNOW ! it's exciting. like hey kids, i was alive when that theory was confirmed, yessss you bet your ass i was
+Nine Eleven Sounds like a solid paranoid line of thought, NineEleven. The Aether, hehe.
+haghalam0 Yes Gravitational FUCKING waves!
+Nine Eleven Tesla wasn't a physicist, he was an engineer. His method involves experiments while Einstein's method was all in his mind which have been proven to be true not by his statements, but with solid equations that Tesla would never be able to come up with. Einstein's mathematical equations gave us understanding of the whole universe. Aether has already been proven to be false and was left behind over a century ago
+Astro Physics Actually, Aether could be considered for just another name for "dark" matter. I'd just suggest googling that and seeing how it works. In fact there is a link to a video about "dark" matter at the end of this video that gives a pretty good definition.
It's probably the best animation to understand gravitational waves under minutes.
I fucking love science!
+llaauuddrruupp explosm.net/comics/3557/
+llaauuddrruupp *suddenly
+llaauuddrruupp YA I BET U DO
and I love fucking science!
Great video!! And now its confirmed!!
+dswif06 Gravitational waves that is!!! lol
+dswif06 No. This video is confirmed
@@PigsBeFlying Consider the man who IS standing on what is the Earth/ground. Touch AND feeling BLEND, AS ELECTROMAGNETISM/energy is gravity. The Earth is blue, AND the sky is blue. SO, overlay THE EYE in BALANCED RELATION to/WITH what is the Earth ! (The BLUE SKY is ALSO translucent !) GREAT. Objects fall at the SAME RATE (neglecting air resistance, of course), AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. NOW, we proceed to the next step. The stars AND PLANETS are POINTS in the night sky. Invisible AND VISIBLE SPACE in fundamental equilibrium and BALANCE IS the MIDDLE DISTANCE in/of SPACE in fundamental RELATION to the universal fact that E=mc2 is F=ma. The Earth (A PLANET) involves BALANCED electromagnetic/gravitational force/ENERGY, AS E=MC2 IS F=MA. The Earth AND the Sun are CLEARLY E=mc2 AND F=ma IN BALANCE pursuant to what is the BALANCED MIDDLE DISTANCE in/of SPACE !!! Consider what is the speed of light (c), AND consider WHAT IS THE SUN. NOW, think about what is the Earth. Importantly, outer "space" involves full inertia; AND it is fully invisible AND black ! Great. Accordingly, the Earth is in BALANCE with what is the Sun, AS the orange Sun represents what is LAVA ON BALANCE !!! Great. (Notice the role and relation of what is the EYElid.) The MIDDLE DISTANCE in/of SPACE is universally balanced to/with what is THE SUN AND the speed of light (c), AS E=MC2 IS F=MA !!! Gravity IS ELECTROMAGNETISM/energy. Notice the black space of WHAT IS THE EYE, as the stars AND PLANETS are POINTS in the night sky IN BALANCED RELATION to/WITH what is the MIDDLE DISTANCE in/of SPACE; AS E=MC2 IS F=MA !!! The FULL DISTANCE in/of SPACE is truly linked AND BALANCED to/with what is THE MIDDLE DISTANCE in/of SPACE, AS E=mc2 IS F=ma IN BALANCE !!!; AS ELECTROMAGNETISM/energy is gravity !!!!!! GREAT !!!! Notice that the viscosity of lava IS BETWEEN that of WATER AND the Earth/ground ! The orange Sun is the same size as THE EYE. Outstanding. E=mc2 IS F=ma as what is the BALANCED MIDDLE DISTANCE in/of SPACE !!!! GREAT !!! LOOK at the progression AND THE BALANCE regarding FULL DISTANCE in/of SPACE, MIDDLE DISTANCE in/of SPACE !!!, AND A POINT (ALSO c) !!! E=mc2 IS F=ma !!!, AS ELECTROMAGNETISM/energy is gravity ON BALANCE !!! GREAT !!! It ALL CLEARLY makes perfect sense. BALANCE AND completeness go hand in hand. E=mc2 is F=ma. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE, AS ELECTROMAGNETISM/energy is gravity !!! Gravity IS ELECTROMAGNETISM/energy ON BALANCE !!!
TIME is NECESSARILY possible/potential AND actual IN BALANCE, AS E=mc2 is F=ma; AS ELECTROMAGNETISM/energy is gravity. INDEED, TIME DILATION ultimately proves ON BALANCE that ELECTROMAGNETISM/energy is gravity; AS E=MC2 IS F=ma !!!!
INSTANTANEITY is thus FUNDAMENTAL to what is the FULL and proper UNDERSTANDING of physics/physical experience, AS E=MC2 IS F=MA ON BALANCE !!!; AS ELECTROMAGNETISM/ENERGY IS GRAVITY !!!
GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS E=mc2 IS F=MA; AS ELECTROMAGNETISM/energy is gravity. Accordingly, the rotation of WHAT IS THE MOON matches it's revolution !!! Notice what is the fully illuminated (AND setting) Moon in DIRECT comparison with what is the orange Sun !!!
Again, the stars AND PLANETS are POINTS in the night sky. A given PLANET (including WHAT IS THE EARTH) sweeps out EQUAL AREAS in equal times consistent WITH/AS F=ma, E=mc2, AND what is perpetual motion, AS ELECTROMAGNETISM/energy is gravity; AS E=MC2 IS F=MA ON BALANCE !!!!!! GREAT. Gravity IS ELECTROMAGNETISM/energy, AS E=MC2 IS F=ma !!!
By Frank DiMeglio
Einstein was a known weasel.
I love how simple this video is and yet does not gloss over any concept
Finally another one of these type of videos!
+mpsSalvadorian yes
+mpsSalvadorian finally another one of these comments
Hail Satan \m/
Hile Hydar
Another one
This was a very clear, understandable explanation so thank you very much for taking the time to make this video! Keep up the good work
Another great video from PHD Comics! I have thoroughly enjoyed this. I hope there's more physics research videos soon.
Wow :) This is such a brilliant explanation for a fairly complex problem :)
Thanks a lot
Thank you for making these easy-to-understand videos! Already subscribed!
Reading various articles trying to gather answer to few questions.This video made easy to grasp in a simple language.Thanx
What is pushing those marbles down upon the "rubber space-time fabric?" How can you use gravity to explain gravity?
Mind blown.
You are misinterpreting what he means. He means anything with mass will bend space time. He was using a simple analogy to portray that. There is nothing pushing it, it just bends space time because it had mass.
@@triton6490 I would think the analogy of forces like when holding a plastic ball filled with air under water everything will seek it's own level or pressure. But that may bring us back to iether which may be more accurate.
@@triton6490 then why is it space time curvature only one way and not the other way
@@rxr2066 watch VSauces video "which way is down" he can explain ig better
The answer is YES THEY HAVE BEEN DISCOVERED!
i am just so excited i dont understand this very well but i love this, Gravitulations everyone !
Hey there, sorry to bother but my very close friend has just uploaded his first CZcams video on basics of gravitational waves , it would mean a lot uf you could check it out maybe leave a feedback ❤️ have a good day czcams.com/video/JzqJ7G1xZYg/video.html
awesome video...great effort made to make such a clumsy topic simplified..
Awesome illustration and explanation!!
Thank you
Am I the only religious man who loves science but now gets annoyed everytime there is a new discovery or invention atheists have to start screaming about how religion is stupid or that god isn't real or about how such thing was not written in the bible, quran, etc. Atheists have to understand that these are not science books you can't compare the two. Religions, atleast all the major ones, were never against science and all the instances in which that happened was because it went against the wishes of men who were already misusing religion to gain wealth or power.
I love science. I love it very much,because, according to my beliefs, it is gods greatest gift to humanity which can be used to help people and lets and understand and enjoy this great universe. I'm even studying to become a doctor to use it to help people.
All I'm saying is that people need to chill, everybody watching this vid is here to enjoy this new discovery so, weather you are religious or not, let other's enjoy this and stop spreading the hate.
+noder mark That's a fine message you've written there, but first and foremost, religion has historically had MAJOR problems with science and suggesting otherwise is pretty much a non starter.
Then attempting to chalk religions issues with science up to the leaders of the religion is somewhat pointless as well - as they speak on behalf of your god. They are who all the religious folks look to for leadership from the word of their god. So you can't really whitewash that aspect either.
If you want to believe in a god and science at the same time I'll say fill your boots, but science and everything we've discovered about our universe does not gel with anything in any of the major religious books. they provided all the answers and left no room in them for discovery such as this.
+noder mark humans are emotional creatures. everybody has emotions and so everybody once in a while needs a scapegoat for letting their steam out. for many of the religious crowd it's the atheists. For many of the atheists no matter how unaffected by emotion they claim to be, the steam stills comes out and the scapegoat is the religious crowd. I try to remain positive in general so I see in this back and forth phenomenon as strengthening the fact that we humans, the most emotional creatures are functioning properly.
+noder mark Yeh, We could say God created physics and everything, nobody said science is wrong.
I agree completely with you. I believe in God and I'm going to start studying Mechatronics Engineering on April. Religion is completely compatible with science. They're not opposites, they're just in different fields of study. By the way, English isn't my first language, so I'm sorry if I didn't write this correctly :P.
+noder mark dude, just ignore them
Great animation. Really fluid and to the point.
but disgusting colors, and style of animations.
Very Informative, would love to see more, made the explanation simple enough so anyone can now understand what the subject is
This is an absolutely beautiful and well explained video
Even though I'm really bad at physics, I understand gravitational waves much better now. Thanks for amazing explanation.
Someone is getting a Nobel Prize!
+dandmarcus Yeah, Einstein ! XD
+Mr.Halogames dead people doesnt get Nobels
+dandmarcus Sadly not everyone who deserves it.
+Filipe Barroso To divide the Nobel prize among the people who were involved in this, they'd have to hand out sheets of gold leaf and toast with homeopathic champagne.
Yeah they got!!👏
Very nice and simple explanation.
Very nice and interesting, the italian subtitles are perfects also. Good job man :)
Love how at the time of this writing 40 people disliked this. Those 40 people probably think the world is not round.
this guy probably things everyone who hates a single guy from an ethnic minority is racist. boy dont generalise or stigmatizse pleeeease
I disliked it because it's wrong. "actually moving in a circle" - no, an ellipse. "not an actual force"..."very weak in the scale of other forces" and finally the reason earth goes around the sun is really the bending of time around the sun, not space.
@@martinevans8965 because of time bending? how exactly
@@justagenosfan nice username! You must have had that for years! What I meant was that this video implies that the space is curved, which is misleading because it's negligible. Actually, the rate of passage of time varies with distance from the large mass, which bends the geodesic.
@@martinevans8965 but doesnt that mean gravity doesnt exist for objects without momentum
Love 💕 the way of Einstein’s prediction of gravitational waves from general theory of relativity !! to 20th century LIGO experimental gravitational waves detection
It’s actually a dream come true for Einstein 🤘🏼🤘🏼🤘🏼🤘🏼🤘🏼
Thank your for the intuitive graphical explanation!
this is so far the best video ever made about gravitational waves !!
I still don't know how this is going to help us know the universe better
+Rayan Hamdan Because it's a totally new medium for astrophysicists to study things. They have basically only used light up until now, and now there is a totally new approach. It's like if you were studying a distant island you couldn't reach by boat and then you suddenly devised a way to measure the way the water breaks around the island by the waves that reach you on shore. Or it's like if you were deaf and had to rely largely on sight for things you couldn't touch, and then suddenly you can hear: you get a lot of new information about what you've been looking at. If you mean what it can be applied to, I think it's particularly useful for heavy dense things like black holes and neutron stars which are still pretty mysterious things in our universe. It would help, I imagine, people learn about other cosmological questions too regarding the nature of gravity and maybe help prove/disprove certain Grand Unified Theories.
Light and electromagnetic waves can be blocked by opaque objects. Gravitational wave isn't.
+Rayan Hamdan you are in a football stadium with all the floodlights on, and want to know who or what is standing at the other end. You whip out your binoculars (or Hubble Telescope) and are able to see the other end.
Now suppose, someone turns off the floodlights, and the entire stadium turns dark. What good is your telescope then?
This is where Gravitational Wave detection comes in handy. GWs are emitted by just about every celestial body, and remain virtually undisturbed while travelling through space (i.e. no disturbance from obstructions.). Thus, if we have enough sophisticated instrument to detect these tiny ripples, we can detect any celestial body, very much farther than our present sphere of sight, irrespective of its luminescence.
PS: I'm no physicist, so any criticism or correction will be most welcome.. :)
+TatS im not sure but gravitational waves works like mechanichal(not sure if this word is correct) waves.So they will be disturbed from other GW.
OR am i wrong?
Crazy Duck GWs do not interact with matter, which is why it can travel through other bodies without getting disturbed. As for getting disturbed by other GWs, I think you are right and my previous suggestion that GWs can be used to detect any celestial body is wrong. We'll only be able to detect and study large celestial bodies like Black Holes, Supernovae etc. moving at considerable fraction of speed of light (hence, ruling out planets etc.) These strong GWs however will not be disturbed from the smaller GWs.
They will give us an advantage because we can't actually "see" Black holes, or dark matter, and GWs from them can provide us data to understand them more...
They did it!
Thanks for the explanation!
Excellent video. Thank you.
so studying space is basically studying stone in the jelly :P
why do mass bend spacetime downward? Why not up? What causes the bending, gravity?
this is used to simplify the image of gravity...in reality it's more like bending the whole 4D fabric of space "Inwards".
Still, bending something in order to produce a force requires a field of some sort? I.e. if gravitation causes the bending of spacetime, what is the field that is dragging the attracted masses "down" or "inward"? If I release a ball on the top of a hill and there is no gravity present, it will just sit there. I mean you can't have gravity to explain gravity?
+makzmakz without gravity, the ball and the hill wouldn't even be formed in the first place, but we can take an extreme case that, what if there is no planets and starts and a universe with just a ball, this ball will have it's own gravitational field and bend the whole universe.
gravity is caused by the existance of mass.
+makzmakz The bending is caused by the stress-energy tensor. If I remember correctly, it means that if you have energy (or momentum), you'll bend spacetime.
Superb explanation!! Thanks.
What a description...thank you!
"There's not an actual force pulling the planets around [an orbit], just a bending of space."
Um...
isn't it rather that the curvature creates a force
@@justagenosfan The curvature of spacetime creates acceleration and the illusion of a force. However, gravity is not a force (outside of classical physics).
So wait doesn't the light travel in space-time? why doesn't it get stretched and compressed as other things that are part of space time?
Excellent question. I think you've hit on the "thinking error" that as yet afflicts the G-wave establishment. What makes the LIGO enterprise so suspicious is that they sometimes say, yes, the light wave gets stretched, too. But they never provide a coherent PICTURE of what they say happens. Hand-waving. Not gravitational waves.That's all they've got.
It's because the gravitational wave moves relative to the light very slow. The light that gets strechted doesn't make the measurement, but the light, that follows the stretched light into the stretched space now has to travel a longer path. It's that light, that gets measured.
This is the answer i come up with. Ripple and distortion only happen when there's an object with a mass, and based on general relativity a light didn't have mass and only stored energy. So there you have it
Thank you. It was very accurate, easy to understand and complete.
awesome video! thank you!
so are gravitaional waves 2d or 3d
+Ahmad Yh 4D, 3 spacial and one time.
+qantj vulpis as long as you don't include quantum mechanics...
illusiwind
Pretty sure there isn't a quantum mechanical description for gravitational waves.
+qantj vulpis Yes there is. One mathematically consistent description is string theory. ncatlab.org/nlab/show/string+theory+FAQ#RelationToGravity physics.stackexchange.com/questions/54317/in-what-limit-does-string-theory-reproduce-general-relativity
+Ahmad Yh They are 3D, the expand in all directions. But it is hard to visualize them this way, so it is easier to show the graphs in 2D.
OMGW THEY HAVE BEEN DETECTED!
Did you really write "Oh My Gravitational Waves"?
😂
@@psibarpsi no he probably meant "Oh My Governor of Wyoming"
Thank you so much! this was very useful!
Amazing video man!
ur like the only video i understood about this shit
Half Life 3 confirmed!!!!!!
yup
The best awesome thing simply explained.keep up.
I have this for my presentation tomorrow thanks
GRAVITATIONAL WAVE IS DETECTED!! :D :D
still don't get it xD
gravity waves pull everything to the centre of the Earth in precise manor that can be measured, yet it says space gets bent and distorted by gravity, I don't get it either.
Great Video! Simple and efficient! Which software do you use to create this kind of videos? Thank you!
It’s fascinating that Albert Einstein predicted gravitational waves in 1918 and it took almost a century, 2016, to prove him right.
gravitational wave is real
I love this video, but why does everybody have to use that damned ball on a stretched fabric/sheet analogy for gravity? The analogy itself is partly based on gravity!
This is how their ugliness shows in making us understand, they just can't speak up the exact thing, i mean why you are putting analogy, you need the understand the science in purest form not analogous, how will the student apply it in real world with partial understanding., 😭
Great video!!! very well done!
this is a brilliant and easy way to explain how gravitational waves work!
Science is truth... Sorry religion, you had me for a while, I've finally seen the light..
+james butler poor soul
+james butler Remember the same guy that proposed gravitational waves years back once said "Science without religion is lame, religion without science is blind"
+amthegame00 i'd rather be lame then
Religion and Science are intertwined
Religion is failed science.
great video. Thank you.
Great explanation
absolutely well explained, thanks a lot yaar...
Wow, thanks for the informative video.
Well explained!
very well explained, thanks alot .. :)
This is one of the best video i have been so far
Thank you. I had a vague-ish idea - now I have a slightly less vague-ish idea. But I did learn something!
Thank You! I sorta got it before but not enough that I could explain it to someone else. Now, I think I can. Nice Job Dude! :D :)
Nagyon köszönöm azoknak, akik a magyar feliratot készítették! :)
the best explanation :) thank you
Awesome video .. keep the good work .. I subbed ! ;)
Loved this video!
very nice thanks a lot!
The cartoon explanation is very clear，thanks
Can't wait to hear about the new discoveries this new method of measurement can bring us. Bravo! And long live Science!
I'm fascinated.
Muito Bom, continuem avançando.
Very informative..!!!
Thank you!
Clearly explained thank you
this is brilliant
I really love your videos, unfortunately i'm Italian and I don't understand english too much, can you add subtitles in your other videos?
Very nicel explanation
nice job
well explained..
Nagyon érdekes:)Thx!
Excellent!
Great video! What is the theme of the soundtrack? and the author? Congratulations. Thanks
2:20 smart data analysis technique
Use of STATISTICS here too in LIGO, wowwwww!!!!!!
Great video 👍👍👍👌
🙏👁️🗨️💬
How did you create this video for the comic slides? The voice over and stuff. Is it by powertalk?
Very nice video :)
There is so much about the universe that we don't know and there will be much we would not be able to know ever. The video proves how limited human mind is to understand the vagaries of this utterly complex universe. The fact that we are in awe with the detection of anything new, shows how little we know about the universe as yet and how much more we are to discover in future. This is why we should be humble enough to accept our limits and be skeptical of even the science, not just religion(which is obviously for the sheeples) and spirituality. To know that you don't know is the best thing you could know.
wowww.... thank you!
Next month, views will have exploded in an exponentiel way!
Congrats to the LIGO's team, and thank you for this nice video, very usefull :)
And by the way, Bruce Allen from the Max Planck Institute for Gravitational Physics in Hannover said, when he first saw the recording, he said "Oh! It's an injection, obviously!" haha!
Thank You
Magnificent!
Thanks! I now SOMEWHAT understand why this discovery is such a big deal.
This channel explain things better than Ted Ed
But both are bice channels! Thank you for subtitles! Im from Argentina
beautiful.
Probably no simple answer to this question but - when you say the distance, however minuscule, changes.. whether it's compressed or extended.. what is extending/compressing? are you saying that the molecules/atoms that make everything up actually move apart / come together when one of these waves pass by?
thank you
great video you need an application at play store;)