The Deepest Hole in the World, And What We've Learned From It
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- čas přidán 8. 06. 2024
- SciShow takes you down the deepest hole in the world -- Russia's Kola Superdeep Borehole -- explaining who dug it and why, and what we learned about Earth in the process. Don't fall!
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Written by Dave Loos
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Sources:
www.atlasobscura.com/places/ko...
www2.gi.alaska.edu/ScienceForu...
www.damninteresting.com/the-de...
www.wirelinedrilling.com/sites...
www.csmonitor.com/1985/0822/dr...
www.nytimes.com/1981/09/29/sci...
Russians: *Drill for 24 years*
The Earth: "Is it in yet?"
HAHAHAHAHAHAHAHA!!!!! Excellent!!!
Far from it:))
MORE LUBE!
reaches for more mud.
Ur not a comedian.. get back to the basement
😂😂😂😂😂😂😂
Still proud of the hole I dug out on my grandparents farm when I was 7. I thought I could dig deep enough to penetrate the crust and create a man-made volcano (again, I was 7)
Over the course of a summer I got about 8 feet down before my grandpa took the shovel away because I didn't know jack about bracing the walls to prevent collapse. Not bad for a 7 year old. Still have a rock I dug up from that hole.
Can I have the rock?
So you just heard how hard this guy worked for something, and how proud he is of it.......... and you just expect him to give you it...... you've got to be a democrat.
+SAM BRICKELL I'm not interested in politics, I just wanted the rock 😁
Lol😂
LOLWUT?! Only Americans seem not to understand what Democracy really is when they come up with such nonsense...
Russia certainly has some incredible scientists and a amazing spirit of adventure. My hat's off to everyone involved in exploring our earth's depths.... thanks for sharing the knowledge with the world.
*Had. Sadly when the Soviet union collapsed, Russia stopped pursuing science.
You're welcome
@@eldritchgoat1422 Hardly. Better take a good look at Mir or current ISS.
USA is even buying rocket tech from Russia these days.
And they have a different culture (read = old, compared to many upstarts), that explains lots of peculiar aspects about them.
I respect them, in many ways.
@@BlackStar250874 we are buying rocket tech, because we aren’t bothering to make it ourselves. Their tech is still kinda garbage tho. The fact that we keep sending our astronauts up in their rockets, is a joke
This whole title is a that’s what she said joke
The way he said how the rock really really deep down acted like plastic is crazy
I tried to dig to China when I was about 4. I only had my dad's shovel though.
You're just dangling a joke about needing a good psychiatrist, but then, so am I.
And now, instead, -- all these years later -- China has dug through to the United States and owns all sorts of American debt.
Did the same too
With the help of my Tonka trucks though 😂😂
@@blackalgorithmist000 gotta love Tonka!
I made my dogs dig it
They didn't
If a second hole like this were attempted then the first one could be known as the a-hole.
Batumtiss!
@markj6700 If the second hole was known as the b hole then the first one would be the a hole. 26 holes would be then needed to cover the alphabet.
@Bobby Allen You didn't get my joke. Don't be so literal.
Love that
why does this have likes, tried too hard here.
It's a deep shame we, as in humanity, didn't try to make other superdeep boreholes in other locations and comparing results.
It's probably gonna take a lot of cost.
The Earth ain't going anywhere anytime soon
If you’re a politician in a democratic country, it’s really difficult to run an election campaign on “Let’s use tax dollars to dig a hole for science”. The Soviet Union didn’t have to answer to their population so they were able to embark on much more ambitious scientific endeavors. I’m actually surprised that the project continued for 3 years after the Soviet Union collapsed.
There's one in China - 10 km deep, there are a few other very deep boreholes too
I have
The cola bore hole in
Russia
12 klms down
Push a tube down there
Section in the middle
Strongest steel
Gravity feed water one way steam pushes multiple pistons generating steam power
Tricky part would be getting it going before it was completed
The planet Earth never fails to surprise eager minds with the diversity and wonders it has to offer. There are so many different and beautiful plants and animals living on this planet, and I hope they continue to. ❤
Thank you SciShow for this video! 👍🏻
I have
The cola bore hole in
Russia
12 klms down
Push a tube down there
Section in the middle
Strongest steel
Gravity feed water one way steam pushes multiple pistons generating steam power
Tricky part would be getting it going before it was completed
Imagine if the hole were wider and you fell into it. You'd have over 3 minutes to regret the mistake until you were forced to stop thinking in pitch blackness.
That's grim. I need an ice cream.
you would evaporate before you hit the bottom
and the ice cream would melt
you mean like skydiving that thing where you reach terminal velocity very high above the ground, and dont die?
no piece of the skydiving equipment helps you survive the free fall. it only helps you slow down so you can survive the landing.
well.. there's goggles i suppose.. your eyes get a little teary without them in the wind, but that's about it.
bob jimmy Forgive my ignorance of chemistry and physics, but why would I evaporate? You've made me super curious.
@Trump: 180 degree Celsius.. Does that answer?
Basically drilling that deep has only shown us how much we don’t actually know.
Steven Mann the pinnacle of intelligence is how much you don’t know.
This is such a metaphor for life.
Yep. That CGI picture of the mantle and the inner core is all a guess. Earth is supposedly 4,000 miles to the center. We've dug 8 miles.
@@halomaster213 wow. You are amazingly incompetent
@@johningle1 mathematicians have stated that the Earth and all other planets are hollow. Also, explain the astroid belt.
Based on my subtle experience in digging holes along the beach as a kid for sand castles or in a field as a teenage job for postholes, I’d like to hear how they concluded the unique source(s) of the water at the deepest depths since any underground spring or aquifer would be penetrated on the way down......and you know, the whole gravity thing? 😊
I'm assuming the sides of the borehole had to be reinforced to block anything from coming in...or else the hole would just collapse.
@@OatmealTheCrazy true…..having just revisited the video, it also mentioned the temperature reached well above water’s boiling point (-360°F) that caused them to stop. It’s just strange.
@@scottlivezey9479 If you pressurize any gas it becomes a liquid, the trapped water was subjected to extreme pressure unable to escape until the drill broke through that is how
@@scottlivezey9479 100°C*
@@yguy1232 360°F =/= 100°C
My first thought was “what if I jumped into it?” and now I can’t focus on the video due to how terrified of that idea I am
Not sure how wide it is, but based on what it looks like, you'd get one leg in and then get stuck.
@@Kartoffelkamm exactly. It's just 9 inches thick.
Lord of the Rings comes to mind.
@@Kartoffelkamm you couldn't fit as its only 23cm wide, but you could drop your shoe down it or something
I love how they just lost interest, went home and let everything crumble
Probably for the better. It’s pretty useless to drill a huge hole.
Workof
The story I heard is that they couldn’t get the drill to go any deeper. It was like they hit a hard bottom. Everything this guy said about the earths core is just somebody’s guess. They have no idea what’s down there beyond how far they drilled.
@@fivebooks8498 Thats not true, by sending sonic waves through the earth and calculating their path scientists can easily see whats solid, whats liquid and what material it is
Workof
They can’t send sonic waves into the earth 100’s of miles let alone 1000’s of miles.
I doubt they would even penetrate as far as that hole was drilled.
Don’t believe the garbage they tell you.
@@fivebooks8498 yes they hit something they couldn't drill through
*Drops Nokia down the hole*
...
*Hears echoes of it crashing to the bottom*
...
*Hears ringtone when his friend calls*
*do you know de wae of da devil* DRILL THE DEEPEST HOLE ON EARTH
r/whoooosh
I think?
That's the biggest slug I've ever seen
You’d literally have better reception at the bottom of the ocean
Evi1M4chine have you ever heard of a joke?
I forget how big the earth is since I'm always looking at larger planets and stars.
It's pretty cool
Came here for a “your mom” joke and I’m very disappointed in this whole comment section.
So after nearly 20 years of dormancy, how much of the borehole is still in tact? Earthquakes and settling probably have collapsed a lot, but I'm curious to know if it's been looked at since?
That curious brain that wanted to know if the hole has been looked at is now five years older. 🧠 Nice and chewy
Some one should drop down a camera attached to a really long rope.
@@THUNDERCAT37c and I still want to know!!!
@@THUNDERCAT37c *squish*
@@bumrocky me too
Its so deep, you can literally see Adele rollin'
XD
Ben Mayor XDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
HAHAHAHAHA
Scientists looking to the bottom of the hole with a telescope
Scientist A: ....Is that what I think it is down there?
Scientist B: Oh my god it's f***in Adel-
Adele: WE COULD HAVE HAD IT ALLLLLLLL ROLLIN' IN THE DEEEEEEEP
Everything about this chain is of historical importance
Nice quick and precise vid, love these
1:13 this part always cracks me up.
pfft 12km? I had to walk 10 km in pokemon go so a fucking egg would hatch
Right?! Just crazy!
it was 2 years ago, theres probably some hole deeper, for example, my soul
Just drop ur phone down the hole on a rope and u will have a 10km egg hatched :)
There's actually a Mewtwo at the bottom of the pit. Well, get going!
lol
but... if you drop a Nokia down it, will the earth or the phone break?
I use my Nokia 3310 for knocking nails in, and it never breaks
I'm not sure the phone might break the rock since it's like plastic but it might plastify the phone and nothing will happen
AidanTBM // TheBudderMinecart // Aidan Core. i think you are really fun at a party smh
AidanTBM // TheBudderMinecart // Aidan Core your name gives me cancer
kidneystone53
I use mine as a hammer itself.
Amazing how much you've improved since this episode
I have
The cola bore hole in
Russia
12 klms down
Push a tube down there
Section in the middle
Strongest steel
Gravity feed water one way steam pushes multiple pistons generating steam power
Tricky part would be getting it going before it was completed
Manhole drilled for 24 years: *DEEPEST HOLE IN THE WORLD*
vOLcaNo: laUgHs iN LaVA
CZcams: Here, watch this
Me: but... this is 5 years old...?
CZcams: Do you wanna watch it or not?
Me: ......yeah......
Omg yes me too 🤣🤣🤣
I'm pretty sure it's part of some mind control script... seems everyone is getting recommended obscure videos from 5+ years ago... there is clearly a reason for this.
I mean, one of the major advantages of the internet is that it acts as a compendium of information, age is pretty much irrelevant to information quality
Same
I also really wanna tell the dude to put his arms down...
You know, it just occurred to me how absurdly deep 12km is. I'd love to see the tech they used to do so, It really must have been quite the process.
Yea
They used a big drill !
@@harryhanly1609no way?!
This was a really interesting video!! Thanks
nah its crazy seeing hank like this. he looks so different now. why was this video recommended to me?? lol. 9 yrs ago wow..
It’s weird to think that it started in the USSR and ended in Russia
@@awesomegaming1991 He was joking. 😐
@@awesomegaming1991 r/woosh
SyedRayyan Ali what is your profile pic that suddenly overnight everyone and their mother has
Chris Marthini lol, yeah, I found out, as expected, it's a meme, like Uganda knuckles, only that one I actually found funny, this one however, idk, I might be too old to get it, and apparently you have to be apart of that crowd like KSI and those folks to get it, I just don't know anymore... Lol
I thought it ended 12,262 meters below Earth's surface.
And I used to think I could dig to China...
lool
well if you allready live in china...
+Skate&Car Dude then you wouldn't be watching this as CZcams is banned there
+Patrick Chen tor or a VPN
+Patrick Chen Hong Kong has YT and FB access
Thank you🤝 for giving this information to us
Just asking, how did they know the measurements and the inside of earth if this is the only deepest hole or depth that they have reach?
Exactly what I was wondering
We've known the size of the earth for over two millennia. Source: en.wikipedia.org/wiki/Earth_radius#History
Mother Earth is still virgin then
amen
but she got wet though
Same old story of rubbing a little on the outside worked again though!
why the fuck do you call it mother then
bro...
bullshit.....not one mention of my exwife
😎😎
bazinga!
Don't lie. my ex wife hole is deeper.
all too easy , lol,
how deep is the average vagina? deep enough for a man to lose half of everything he has ever built in life.
Always interesting, thank you.
Those organisms are critical to understanding evolution. great idea for discussion. thank you for your conciseness and eloquence.
Wow, the russians hit an all time low...
Ok i'll get my coat.
Actually their all time low was colluding with trump
Allow me to open the door.
BwaHaha!! 😄😄
You are going to need it when we send you to Gulag.
Dante 666 likes o:
...well... so much for my attempt at digging a hole to china...
If you live here in the U.S. and you dig a hole straight through the world you will come out anywhere between several hundred miles to several thousands miles off the western coast of Australia, depending on where you live in the U.S., the further west you live in the U.S. the further west you will be into the ocean from Australia.
I swear the guy who once thought about digging a hole through the world here and how it would end up in China is one of the most idiotic people on the face of this planet. And everyone who says anything about it is either equally idiotic or worse than the originator was.
I did that as a child too
You can dig a hole in china that's close enough right
You understand how long you'd be falling if you jumped in? It would be literally like spy kids
If you assume it's free fall, no drag, about 50 seconds.
@@mechanicuslupus893 wait, 50 seconds to fall 12,000 kilometers? How'd you figure??
Isn't that the thing "The Who" pissed on on the cover of Who's Next?
Crazy prayingmantis yea
Was looking for this in the comments! It's probably it
Deepest hole on earth? Perfect place to hide a body.
Crazy ass sloth!
"Siri, I need to hide a body."
"Okay, here are some suggestions:"
-Graveyard
-Dumpster
-County Landfill
-Kola Superdeep Borehole
"Siri, how do I get to that last suggestion?"
"Here are your directions" * Proceeds to give directions to a sealed up hole in the ground. *
A friend will help you move.
A real friend will help you move a body.
That is a great use of a hole, shovels not needed
Sinkholes are also really good. No one is going down there
I remember as a kid we rallied everyone in the neighborhood to start digging a hole in a forest over the summer. We got about 12ft deep and 10ft wide. Started taking ladders from our parents, tarps and old school crates. We turned it into a secret fort that we would cover up with planks and bushes.
Did y'all see a dead body?
@@jonathanbreedlove4286 🤣 My wife always mocks me about my Stand By Me/Sandlot childhood.
That's actually really dope
Your parents didn't wonder what happened to their ladders ?
@@jonathanbreedlove4286Hey, what's in your profile picture? Please reply to me!
Love this show
Excellent!
In the middle of the earth, we will find Middle Earth.
Yes
Nice ahahah :D
Best Tolkien related joke I have read in a while, you sir win the Internet today....or last month I guess when you posted said Tolkien related joke.
Only place you'll find there is Mordor.
They're taking the hobbits to the isengard.
I just saw this video and as always I love SciShow especially your presentation style Hank!! One small thing, very small really, and maybe one of the other 8223 comments deal with this, but your calculation at the end indicated that the hole was 0.002% of the way from crust to central core. I'm afraid that's incorrect.
If we take hole depth over Earth radius we end up with 12 km/ 3761 km ≈ 0.002 which would make it ≈0.2% of the distance to the core (more precisely 0.188% if we go to three sig figs). Still minuscule, but at least a little more impressive than the 0.002%, and I would hate to cheat them out of their hard work. :)
I was wondering if anyone addressed this.
Just for fun: the Sun's radius is about 100 times the Earth's, so if the .002% were accurate for that hole, Earth would be as big as the Sun.
I thought .002% was a little small. The earth is big, sure but not that big.
@justame smith yeah, earthquakes and volcanoes are made by the government to fool us. Smh
@justame smith every earthquake and volcano is my proof. What's yours?
@justame smith Do some actual research and find out what causes earthquakes and volcanoes
Really good that you make videos till this day.
I have
The cola bore hole in
Russia
12 klms down
Push a tube down there
Section in the middle
Strongest steel
Gravity feed water one way steam pushes multiple pistons generating steam power
Tricky part would be getting it going before it was completed
If we were grading holes this one would be an A+, really impressive.
There's just nothing in this world I love more than a good A hole.
Best place to put a toilet bowl on top of
Nawwk ballistic poop xD
And a microphone at the bottom..
Gary Stinten they did
Zecora No, they didn't. That's an urban myth, and a stupid one at that.
Phobos Anomaly Oh okay well I though it was real, guess its not.
Pretty insane stuff!
***** how about stfu!
***** Overreaction much?
***** Drilling for 24 years, drilling over 12,000 metres, new never before seen drilling tools had to be made, the scientific discovery that water existed that deep underground, rocks acting like plastic. Pretty insane stuff sums it up.
Thumbs up from us.
dude clam down
Bluoenix Institute Nananananananananananana DudeClam!
Excellent !!!!
I had watched this before but had no idea this was hank green. NEAT! Thanks Hank!
To all the people who keep saying, "How do we know what's at the lower layers of the Earth if we can't get there?" I ask you: how do we know what's in the Andromeda galaxy when we can't get there? The answer is that we don't have to literally be somewhere to figure out what's there; all we need is a little physics. In the case of astronomy, we use the physics of light, gravity, and fusion. In the case of geology, we use the physics of sound and tectonic plate activity.
I think people get that, they're just curious about what specifically happens in the process of figuring that out (i.e. what kind of evidence do we look at and what do we do with it to figure out what's there).
BrighamTalks Sadly, I can't assume that. Also sadly, I'm not a geologist, so my explanation can't go much further than "sonar and tectonic studies" >_
So... The farthest mankind has drilled is just over 12 km, and yet we have a diagram of the earth's layers. Logic at its finest.
LOLLOLOLOLOLOLOLOLOLOL YOUR SO FUCKING RIGHT! XD
No you're right. The government has actually dug to the earths core, the 6,000°C molten metal bohemoth was actually not hard to dig up with our tools that melt at 1500°C. But still they hide this from us and try keep us happy with just one picture of the layers of the world. It's over now Obama, Parker out-smarted you.
Or they just compared seismic waves...
Willdabe4st~ HAHAHA. You rock (pun!)
Isn't all science "science"?
It's actually impressive they didn't strike oil or natural gas that they couldn't cap off permanently. If they had struck anything like that the lid would not be able to stay on for so long. I also wonder what would happen if they reached 35km down, would lava shoot out uncontrollably?
I feel like once you hit the mantle, you just created a volcano. An artificial volcano.
Thank you so much ❤️
How do we know how thick the Earth's mantle is if the deepest hole on Earth is only 12 km deep ?
Sensors and Vibrations ^^
we know cuz we are humen we are intelligent beings
We don't.
Maths and masses and calculations
Tyler Smith Right. Concrete (imagined) things...
0:07 - 0:12
That statement applies to most of Russia. I should know, I've been there.
***** interesting story.
LOL awesome.
Wow, this guy has been to Russia once, he is an expert!
Go home Karlsoon.
TheRussian1 Butthurt!
if you've been there.. you should know better!
Science teacher: for E learning takes off pressure by assigning us videos to respond to and not long essays
Awesome!
False. Kim Kardashian has the deepest hole on Earth.
Good job
Very good sir
/Slow claps
You win sir, hopefully Kanye falls in.
haha...
The deepest hole in the world is the student loan
Facts
Truth 😔
Am not sure I met a women called Donna and she would be right up there pretty deep.
[hellish screams]
Before the welfare state (LBJ-ocine), there were no student loans; we paid our own way through college. Since 90 + percent of the jobs created by giving out student loans like candy are data entry office jobs and not physical labor jobs, has the program really benefited our country when we must open our borders to actually build anything now? Yes, I'm off topic, but I didn't start the thread.
I love when I look up a subject on YT and it ends up being a Hank Green video!
Being a geologist that has logged many core holes in carbonate rock, this video is great!
I've always wondered if they actually could go all the way to the end of the thin layer of the surface and suddenly erupt lava and accidentally create an explosion that later turns into a permanent volcano.
The pressure differential isn't enough for that to happen. If it were, a meter wide borehole wouldn't be the first thing set off an explosion: every time an earthquake happened, the magma would explode .
Uzi the science guy
That and only a tiny percent of magma exists. The earth, with the exception of pockets of melt where we DO have our volcanoes and spreading centers, most of the earth is solid. Even considering the pressure regimes they heat at certain depths should still make the rock liquid, but its not and still not fully understood. Seismic data measures waves through rock and once it hits liquid it can't travel in the same way, hence how we know its solid.
The crust and most of the mantle isn't molten but rather plastic and solid at the same time. The Kola borehole got twisted and deformed with depth. Magma was never an issue, high pressure closing up the borehole was.
Joseph Caskey The earth is not mostly solid. Watch the Cosmos episode from last Sunday.
WE MUST GO DEEPER
That's what she said.
Donald Smith that was too easy man
Donald Smith yep. she would had said that to you
What about the “Well to Hell” in Yemen? I’d love to see a video on this!
Very cool, seems like we may be barking up the wrong tree with drill bits if we're trying to get a sneak peak of the earth deep down given how extremely difficult it has proven to be. Is there a long wavelength light we could use to see through the crust? We'd surely need a giant lens pointed at the earth, but maybe we could use the gravity of a celestial body for that
There is too much in between to use light. I was thinking maybe a bigger drill
If we have just discovered what lies 12km under ground, how do we know that mantle begins 35km and continues for 2900km under the ground? Not even talking about sizes of outer and inner core.
+hurricane zuppor seismic* not being a grammar nazi or anything but try to be accurate when explaining something for the other person might misunderstand what you're trying to say :P
+Leon Vrtar anyone who went to school and isnt 10 years old and under would figure out what he was trying to imply
you would be surprised how many people dont know what seismic waves are...
+Leon Vrtar ^ the disrespect on this man......
lol
If there was water at the bottom, and a temperature of 180'C, does that mean the water would turn to steam once the pressure was released by the borehole? Would/could this steam be used as an energy source or would the 12km journey make that impossible?
I'd imagine the water would condense again before it got anywhere near the top and be in a state of reflux..
It sounds like you're just describing geysers and geothermal power plants.
due to pressure so far down the water keeps being water and drilling so far down for a energy source is to expensive
The boiling point of water raises underpressure. If i remember right its like 600F at 1200psi. This is why our radiators run under pressure, at 15psi the water boils at 240F . last thing you want is steam running through your engine.
KyleGG I'm sorry but you have no idea about formation geology, or pressure gradients or actually anything to do with drilling.
A slight pause between sentences is a great thing.
I work for an industrial coatings company, developing coatings for insulating drilling pipe from deep earth thermal temperatures.
Typically 400 F is the hottest we deal with at say 15,000 ft depths.
We deal with deep sea pressures of 4400 psi maxed up to worst case 6000 psi.
Hats off to the Russians to have embarked on this exploration.
The "Petroleum Drill" @ 0:49 isn't a drill at all, it is a Pump jack.
And a drill was used to make the hole it is pumping from...
Dipshit.
Glad someone else caught that, Captain of the Road =p
Sorry Daniel, but you're an ass and an idiot.
I thought the deepest hole on earth was... wait for it... Yo mamma....
Hangs head in shame.
Love that’s you talk in metric...for a change
They have been to the center of the earth and back. I just got done watching a documentary called "the core". Excellent film.
Vsauce Michael: holes aren't real.
Or is it ? Vsauce theme begins
That isn't the hole story
Exactly why I don't like vsauce
Well, I'm watching an apartment building go up...they found a hole so they could build the foundation. Yeah. And I can see why they were paid big bucks to find that hole too...every time I build a hole, its always round, no use to an apartment!!
Would that hole exist if the earth wasn’t around it, to figure this out I have borrowed some powers from god.
And icelandic company is drilling in an active volcano to power the city of Reykjavik. Worth a video perhaps?
yeyeye wowowowo imagine if they accidentally cause an eruption rofl
Absolutely
As a Dane, I can say this without any hard feelings: Icelanders are absolutely insane, but hella awesome at the same time. Gotta pay a visit to one of my oldest cultural brethren at some point..
@@skbartistry2473 "as a Dane" why do you write like an American?
@@madMARTYNmarsh1981 because we are taught English from a very young age. BTW, how are you on foreign languages?
This was a hole lot of fun 😂
There’s a mistake in your math at 3:24. The earth’s radius is 6371 km, so the drill would’ve actually drilled 12km/6371km => 0.0018 (the figure you have) but in decimal. But you gave that figure in a percent. In percent it’s 0.18% or 0.2%.
What intrigues me is - if 12 kms is as far what we have physically gone, how can we say so sure that the earth's mantle begins only at 35 kms
Aren't we fooling ourselves if we are just calculating based on some theories and not by observations. Wouldn't such assumptions defy the very essence of science.
No assumptions were made in finding the thicknesses, types, and compositions of the layers of the Earth. Khanacademy gives a good explanation to finding these.
Well, indirect measurements, especially when we don't have the first hand access to the subject, is only the resultant measurement of what the subject is made of... and the same resultant outcome can be achieved by varying the composite of the subject itself in many combinations... What we know about the layers may be just one of the several possibilities and fact is still waiting to be discovered...
Well, that is mainly why he said "we know less about what's under our feet than what's across the galaxy". but it sounds like you believe it's a complete mystery and we may as well be taking shots in the dark. We're a little more accurate than that...
way to be a condescending ahole, almost covers up the fact you can't answer his question.
Content was interesting, but the presenter is an overcooked ham.
Just like you!
Mistermaarten150
Yes, it takes one to know one.
Oh thank you. I thought I was the only one. I saw the subject matter and got really excited, until I saw the presenter. I can only stomach about 30 seconds of the guy.
He's trying to talk like the MentalFloss guy, Johns Green.
RumorHasItTV I'm pretty sure John Green is his brother, so it's not altogether improbable that growing up together they developed similar speech patterns.
science for science’s sake. beautiful.
Great vid, very holesome
How do we know the earths mantle begins 35km down if we havent drilled to there.?
Analysing how sound waves travel through the ground as far as I know. Sound ttavels differently between solid and liquid
If you dropped a nickel down there how long would it take to reach the bottom?
en.wikipedia.org/wiki/Equations_for_a_falling_body
Also this: en.wikipedia.org/wiki/Terminal_velocity
So, my half-asleep calculation, probably erroneously oversimplifying it, and not accounting for any changes the heat might have and the way air would move in that tube:
About 4 minutes.
Xuncu Wow only 4 minutes? doesn't it feel like it should be longer? I mean that's probably a way better guess than I would provide, it just seems like it would take longer.
Well, it was with the numbers I could find for falling speed low in the atmosphere, so yeh, I dunno if air resistance would do something different in a narrow tunnel, on top of it being hot air from those warmer rocks-- it would push up, but it would also be thinner, but the only air would be what little there was in the tube. Terminal velocity on Earth is pretty fast tho, so I may be a little short, but 4-5 minutes seems right from what I could find.
Just don't drop your keys down there.
Xuncu Cool! Thanks!
this is a very interesting subject.
Thumbnail (and the cover on the deepest hole) look a lot like "Who's Next" album by the Who.
Wow, credit to Russia. Legendary effort and surprising results.
Actually it was USSR at the time..
So when the USSR folded this experiment ended ?
@@georgeb.wolffsohn30 Hi, from this video and some other sources of information it seems they hit a pocket of pressurised gas and it destroyed a lot of the equipment so they gave up. I imagine it simply became too dangerous and expensive to continue.
so that's where Adele rolled 🤔
+D. D.D. (3Ddude) Na
😂 Nice one
I'd like Samoa...
pppplease.😻
#MyGrandaWillSuckOnAnything
Buddum Chsh !!
You guys should remake this video because of new research and new core maps
The deepest depths of the ocean are still unknown.
The deepest depths of the ocean is Challenger Deep in the Mariana Trench. Subs and drones have been down there, and there are photos and video.
It's the REST of the oceans that have barely been mapped, because they're so vast and not a single, notable location.
How do they make a drill that's 12 km long? That's impressive to me.
it's not a single piece. they keep attaching additional segments to it as it goes down deeper.
I mean, ya, I get that. I'm talking about like transference of energy. Wouldn't it require a collosal amount of torque? And wouldn't that torque end up bending and twisting the drill? Energy transfer stuff right. Sort of similar to the concept of pushing a hyper long stick, or like dropping a slinky. Awesome HD Slinky Slow-Mo
***** He said they devised a way to have only the bit at the end spinning
sinephase It would be interesting to hear what "that way" is.
Matt McConaha
They said in the video they pump mud down and it forces the bit to spin.
It would be interesting to see if we could drill to the core of a small rocky planet or planetoid like Mercury to learn more about the cores of rocky planets with less resistance
I found out about the borehole from the song "The Destruction of the Kola Superdeep Borehole Tower" by the Mountain Goats, who I in turn discovered through John Green. How things come full circle.
A lot more facts and lot less assumptions. Nice!
The real question is can we stop the train in gta v
st jimmy no.
st jimmy its not a question
st jimmy actuly yes hack thr game to stop it on a private non mutiplayer game but non havking still yes use alot of explosives at least 20 million of each explosive on the rail and you have to hit it in the right spot
st jimmy
Stop the game, that stops everything including the train
John Hill well it did stop the train.. so technically the train was stopped.
am I the only one that wants to cut the top off it and then drop a camera with a flash light on it and a transmitter on it down that hole and see what's down there?
*camera melts 2/3rds down*
transmitter probably won't go 12 km or if it does the camera would probably melt.
No
I'm guessing you will probably see lots of rock down there.
Remember those tubes that went across the playground that you could tell into and your friend would hear you on the other end? I spent so much time screaming down a well in my grandmas back yard trying to talk to Australians 😂
Thanks Hank!