6 of Earth's Greatest Unsolved Mysteries

[@icybear1234]

tbh scishow is a breath of fresh air in these bizzare times, thanks guys

[@swashbuckler139]

Bizzaro indeed

[@walkingshrubbery6845]

Yes.

[@boost1606]

This still rings true towards the end of the year.

[@jessicaevans7847]

*these If you want to be poetic, spell check.

[@brendonhalverson5178]

Good lord, has it really been a year?

[@MeleeTiger]

Imagine how different the world would be if modern humans lived on a supercontinent? Like not just how it would look, but how culture and politics would have been shaped by less boundaries?

[@emeraldemperor2601]

this is interesting!

[@EggnogTheNog]

The Noughts and Crosses Trilogy by Malorie Blackman is set in a society where black peoples enforce an apartheid system on colonised white cultures. For this to be plausible, she decided to set it on an Earth where humans evolved on Pangea, rather than Africa, since she couldn’t come up with a plausible scenario where Africans colonised Europe, rather than the other way around.

[@pattifeit4354]

@@EggnogTheNog If you go back in time far enough (and you subscribe to the Out of Africa Theory), Africans *did* colonize Europe ... eventually.

[@shala_shashka]

It would either be really diverse and hostile, or super united and relatively peaceful

[@pattifeit4354]

@@shala_shashka Right! Much like Europe throughput its history, I'd imagine. Tribalized at first, then uniting into bigger and bigger units as trade and transportation improve. With war and bloodshed interspersed throughout, of course, because they're still humans.

[@wmdkitty]

"Bedrock" Gneiss pun.

[@slappy8941]

Geology humor is underappreciated. Everyone just takes it for granite.

[@lindamaemullins5151]

❤️

[@eggs8021]

@@slappy8941 you took my pun goshdangit

[@lizslilcorneroftheinstitution]

I wanted to say that I’ve noticed Olivia seems to be more comfortable in the videos, it certainly gives the videos more spark!☺️ Keep up the great work... I love seeing how the hosts develop with time! Just don’t leave as soon as you hit the peak of hosting!

[@seanwebb605]

This isn't my home. I'm just visiting. Thanks for all the fish.

[@joshswimmerly7110]

42

[@rhijulbec1]

I was going to respond 42~but someone already did! 😂

[@kaceesavage]

Josh swimmerly it could just be 57 like usual. Although you might be right.

[@ryublueblanka]

Have you guys seen the movie hitchhikers guide to the Galaxy?

[@cxiliapersono]

@@joshswimmerly7110 that's what you get when you multiply six by nine, right?

[@Darquilibrium25]

“ ‘Bedrock’ of geology.” Ha, really like that... Pungea.

[@jakelasquish2340]

Gonedwanaland

[@justincarnes1553]

Goodonealand

[@FragmentJack]

Get out

[@legace3485]

Thats not a pun. Puns have double meanings. Usually "thats what she said" is said after a pun. In case u still dont get it.

[@danielklinglesmithv2732]

Son Toro25 lololol

[@hunterhofmann3785]

Hey, SciShow, can you turn on captions for us Deaf and HoH folks?

[@nicholasnguyen1674]

Totally.

[@CelloandAnayaJ]

Hunter Hofmann you can turn on CC on KZbin

[@jasonoverman9679]

@@CelloandAnayaJ have you ever actually used that option? KZbins subtitles are a joke that are so far off of what's actually said its sad.

[@CelloandAnayaJ]

Jason Overman I do use it because I can’t hear that well..... nothing is perfect I guess......but I can remember a time this was not an option.... I am grateful.

[@jasonoverman9679]

@@CelloandAnayaJ I have to use subtitles myself and it's really frustrating trying to watch something interesting and yet the subtitles are nothing but gibberish

[@XFC856]

Shout-out to Olivia for being such a great host 🙌🏻

[@budmeister]

@ThePark 627 weirdo

[@snecilia9601]

@ThePark 627 that's... pretty malicious bro

[@RubixB0y]

Yeah, maybe if she wouldn't deep fry the end of every sentence I could get through more than 15 seconds.

[@jaquessiemasz8650]

RubixB0y literally__ every__sentence.

[@sigmacheseman]

ThePark 627 bruh she looks like a scolding middle aged kindergarten substitute

[@purplealice]

I once read a scenario that when the Mediterranian disappeared, erosion from the ocean wore down the land bridge that was blocking the Strait of Gibraltar. Once that happened, there was an enormous salt-water waterfall pouring into the Mediterranian basin. That must have been awesome to see, from far enough away.

[@WeatherManToBe]

Nah dog, imagine surfing that

[@purplealice]

@@WeatherManToBe Imagine going over those falls in a barrel!

[@garethdean6382]

XKCD did a comic about this, from the perspective of two people living in the dry seabed, noticing that the water was rising for some reason. It's in animated form here: kzbin.info/www/bejne/g2bPaXWerqx4bJo

[@TK199999]

The theory that I find makes the most sense, is that plate tectonics really kicked off after the Thea/Earth impact that formed the Moon. Since Thea appears to have hit us at an off angle, some models suggest said impact fractured the Earth's crust like the shell of hard boiled egg. The broken pieces of shell/crust after cooling down remained separate and have been jostling/rubbing/sub-ducting ever since.

[@omegalightning5715]

Sounds like Earth's history isn't... Written in stone.

[@modenavigationprivee1227]

Omega Lightning oh no you didn’t 😂

[@electrichanoi7244]

Ba dum chi

[@oiltoast3723]

Yeah people's theries usually crumble

[@seanjuneau1802]

Thought u were gonna say "solid"

[@sebastianelytron8450]

@@seanjuneau1802 Same lmao

[@Hydrosized]

Two years ago I hadn’t heard of Hank Green. Now I see him seven days a week!

[@JamieBainbridge]

Imagine if Gibraltar closed today. We'd never let that happen and just open it right back up again.

[@rsmorex]

Make a movie about it... a young Greek kid goes on a quest to find out why the water is draining, fish dying, and salt crystallizing and to save the Mediterranean Sea

[@YouAskedForThis563]

As a steel maker, I have spent endless hours observing the formation and destruction of slag plates and volcanoes, as well as the effect of introducing foreign objects into the furnaces or slag pots that has rainwater or high oxygen or high carbon inclusions. Mankind should get the political nobility in line and get empire earth off this rock before the next extinction event.

[@m2heavyindustries378]

Did you fall out of an insane asylum's window?

[@jennifurzoe1302]

@@m2heavyindustries378 was pushed out

[@jamiewells22]

The Mediterranean Sea really said “alright ima head out”

[@richardhaselwood9478]

1:13... Oh please. Put 2 geologists in a room and you'll get 4 opinions

[@zw5509]

Pangaea breaking up, which is proposed to be in that time period, would cause a major wobble in the Earth's spin. Enjoyed that group of wonders!

[@bcast9978]

It’s kind of a weird feeling watching the Flintstones lately with their stone age drive-in movies and their cave man bowling. It just seems so dated.

[@MaekarManastorm]

We are gonna be going back to the stoneage once covid finishes what it's started

[@bopa3933]

MaekarManastorm hilarious

[@MaekarManastorm]

@@bopa3933 ikr

[@bcast9978]

@@deletedchannel9945 I'm Not Norm

[@MaekarManastorm]

@@deletedchannel9945 a nonsheeple

[@MrDan1969]

Delamination is the way I remember my driver's license is about to expire.

[@Call-me-Al]

I'm here for science puns and science facts, sometimes in that order :D

[@natalieann]

+ 😂😂

[@jessicaevans7847]

Well, you're not here for the grammar lessons. At least you'll learn something anyway.

[@StoneGarage]

It's a youtube comment, not a book.

[@kral3046]

@@natalieann xD

[@anatexis_the_first]

I'm studying geology and this video tickled all my sweet spots! =D Really, *really* interesting stuff!

[@jordan6287]

Haha me too!

[@averysanford4949]

do you have to be good at math to study geology?

[@anatexis_the_first]

That depends largely on the field you want to specialize into. It's nothing too crazy, and very doable with the right kind of motivation. You certainly don't need to be a math-whiz. I don't even have matura and have been 14 years out of school before going to university (worked as an industrial mechanic inbetween), and i'm doing quite okay. So yeah, math does play a role, but it's a lot more important to have a good understanding of geological processes.

[@averysanford4949]

David Wong okay thank you!! i’m still just completing my basics but i’m having trouble finding a major that interests me. i’ve considered geology but any science major scares me because i’m bad at math.

[@myfwnwyturnbull6106]

"The minor wobbles and the major twists - hallelujah, hallelujah.."

[@LookingGlass69]

The 7th mystery of earth is that the anatomy model in the science classroom moves on it's own after 7 PM.

[@KingsleyIII]

Those "ophiolites" are, if I have my Greek right, "snake stones"? Why are they called that?

[@jamesgaines7048]

Hi! I'm the scriptwriter and I didn't notice this while researching the topic, but you're totally right. I think it's because some of them, like serpentinite, look kind of like snake skin? link.springer.com/referenceworkentry/10.1007%2F0-387-30845-8_167

[@bluesap7318]

James Gaines not clicking your virus filled link

[@Zaihanisme]

Blue Sap what are you even on about? What a troll.

[@rasmusn.e.m1064]

Maybe because they "crawl" up through the earth's mantle?

[@biohazard724]

@@bluesap7318 he's on the sci show staff you paranoid dope.

[@luckyfan8974]

0:51 The face of sheer satisfaction after dropping that pun is awe-inducing in its own right.

[@zachshiray8998]

Olivias eyes always look like she just did a bunch of bong rips right before filming. She always got them "im stoned" eyes. I love it😄

[@boost1606]

Reminds me of Hamilton Morris

[@johnlannon87]

Can you guys do a meta episode where you all talk about the beginning of the channel and how you know each other and show us the behind-the-scenes people/processes that make this show possible? I'm really curious about this

[@nickdelsobral9198]

The last time I was this early, you could walk from North America to Asia.

[@theMaRiLyNMaRtInI]

1. Plate tectonics 2. Supercontinents 3. Messinian Salinity Crisis 4. Flood Basalts 5. Earth's wobble 6. Earth's Core Temp.

[@st1llbleed1ng]

I'm so glad that she fixed her way of monotonous speech. I'm so loving it. Way to go. Love it💯💯

[@tcayzer]

Olivia, I really enjoy your hosting 🥰 thank you for keeping science interesting! I'm always interested, but you know, for everyone else 🖖

[@Vistico93]

I've gotten the impression that plate tectonics requires a lubricant like water (who knows, maybe Titan does it with methane) otherwise it can't get started or if it can get started, it can't keep going. I wanna say the great Mariner Valley on Mars is an example of plate tectonics getting started but quickly grinding to a halt. And Venus shows evidence via a relative lack of craters of a worldwide volcanic cataclysm as though all the heat built up underneath the crust until it burst forth everywhere. Maybe that's happened repeatedly. Maybe Earth's plates will grind to a halt after the Sun has boiled off our oceans over a billion years from now?

[@113dmg9]

I'm watching this too late at night and I think a few brain cells imploded.

[@Restilia_ch]

Erm, there are two different Australian Plates at 0:35. I'm guessing the blue one should read "Antarctic Plate".

[@rosalobo4968]

I believe the 'Australian Plate' on the right is just a text marker pointing to the small piece of orange on that side rather than all the blue (which represents the ocean?) also being a plate with the same name.

[@obviouslymatt6452]

Rosa Lobo i believe you’re wrong. You know the ocean doesn’t just float, it sits on a plate... an oceanic plate... hence why all the rest of the oceans aren’t just blue, they’re various plates. It was a mistake in the video.

[@twothreebravo]

The "Australian Plate" text in the right of the slide does have a pointer going to the Australian plate just like the Juan De Fuca Plate and others do. While that blue plate that the text is on is actually the Antarctic plate and it is labeled as such, it is just cut off in the video. You can see the complete image at the Wikipedia entry for "Plate Tectonics" en.wikipedia.org/wiki/Plate_tectonics

[@chrisboucher1987]

Utterly fascinating, thank you everyone!

[@zacharyparis]

Flood basalt mystery been keeping me up at night...

[@RaviKumarTiwari]

I want the opening of this video as ringtone.

[@andrewbryden9360]

I love you sci-show. Keep up the good work.

[@roccobuzz101]

This should've been called "6 things we still don‘t know about earth's geography"....

[@Nick-uf9st]

RoccoBuzz *geology

[@Tonatsi]

Geology is the study of the Earth

[@stevenlarratt3638]

This has geography, geology, geophysics and several others too technical to be known without you googling it...

[@kemphoss-4791]

Plate techtonitism?

[@Pzevv]

0:49 I groaned so loud lmao

[@marcosanaya9540]

Bedroccccckkk

[@MarkBlease]

now i'm gonna have to figure out how much mass you would have to displace to make the earth unbalanced and cause a shift. Good super-villain story.

[@omegalightning5715]

Kyle Hill might be able to help with that

[@jayski9410]

I've always wondered if plate tectonics isn't just the slow motion way of earth's gravity looking for a steady state. By that I mean the same gravity that prefers the earth to be spherical, would probably also prefer uniform and concentric spherical layers within. The outer most layer being the atmosphere, then a uniform although shallower ocean (no land), then under that "land" or ocean bottom, and so forth down to the core.

[@vicariousgamer2871]

I really enjoy the info put forth on your channel. I also wish that I could remember all of this info :) TMI for my aging brain.

[@linefortier8595]

Me too...

[@eierkoek]

I would say the tectonic plates are here since the planet formed. Like in games and movies you see the clumping up of rock (friction causes them to melt) and see lines of lava. Since the earth is spinning, they never got to a halt and kept moving. Added to that im guessing the crust is just thin enough to stay warm and not completely solidify. See this as when a lake starts to freeze (in a thickness relative to earths skin) and you keep the water moving. This will cause seperate ice sheets to grow instead of one big one.

[@ThrottleKitty]

I'd like to see a companion video on the moon, seeing as how it's honestly more weird than Earth. - The most near-perfect circular orbit of any body. So much so it's hard to explain how Earth caught it the way it did - It's so close to earth in size, a debate could be made for this being a binary planet system - It's denser on the outside than the inside (like a golfball) which is just not how most celestial bodies form - At one point it likely had an incredibly thick atmosphere like Titan, as well as a powerful magnetosphere - The meteor impacts on it are freakishly shallow and distributed in a very unique binary manor - The moon doesn't orbit the earth, they both orbit a central point about 1,000k off the center of the Earth - Not only does this contribute to the effect of the tides, it churns earth's outer core, juicing up it's magnetosphere - The Moon likely was the difference maker on planet being hospitable. Not any aspect of the Earth or the Sun I'm not an expert, so it's possible I've gotten some of these points a bit inaccurate. Just giving some ideas.

[@o3_o3_28]

The “central point being 1000km off Earth” is completely normal. That happens with any two objects orbiting each other; that point which both orbit around is called the barycenter.

[@ThrottleKitty]

@@o3_o3_28 While it's normal, the distance is actually fairly odd. it's usually either a tiny percentage, so that is' negligible separate from the center, not separate from the center at all (like, all of Jupiter's moons) or completely outside of the interior body. (like pluto) The earth and the moon are in this weird, half way-between state that's odd. It's like a coin landing on it's side, not impossible, it's just much more likely for it to land on one side or the other then in the middle.

[@reddragon2335]

These are excellent questions/points. When you feel compelled to learn about something, never give up. You might be the next Emmy Noether or Nikola Tesla mindsets the world needs!

[@lyreparadox]

Earth didn't 'catch' the moon, it was formed after a collision with another near-earth sized object - that's why the earth & moon have such similar compositions. Possibly also why it is huge and has a near-circular orbit. Honestly, most of this has been discussed on this channel or on SciShow Space.

[@ThrottleKitty]

@@reddragon2335 I'm a fiction writer, if anything I'll maybe write the book that inspires them though! :D haha

[@toastrecon]

"We can't just drill down there" - The cast of "The Core" would like a word...

[@KnighteMinistriez]

I liked this video. I learned a lot.

[@PilotExplorer]

She’s got a geography teacher look

[@monkestronk1227]

I feel like she will break down on me anytime, just like my geography teacher

[@wdavis9680]

@@monkestronk1227 factoids effect her feeling and her feeling is what she'll call fact and yes she will breakdown

[@supernautistaken]

hypothesis: based on the idea that oceanic crust is denser than land crust, when a supercontinent forms, it is easier for an ocean to form over it and push it apart, or rather transforming land masses into oceanic crust, both pushing tectonic plates away and transforming crust densities in such a way as to have the continents gather opposite the new ocean on the globe, restarting the cycle

[@timpage9424]

Thank you for giving me something that isn't about Coronavirus. 😂

[@linefortier8595]

OMG ! YESSSSS

[@kalmtraveler]

this is really interesting and all, but watching it while getting a little 4.0 magnitude aftershock is highly unsettling.

[@michaeldevine7556]

Miss you, Olivia

[@bethany7741]

I have always thought to myself the reason that pangea broke up, and for periods of extreme volcanic activily is that the poles switched. Rock is magnetic and layers form over time..I have no idea if this is the case. But its my guess

[@firstlast-fr1le]

This is off topic but still... In this video science is willing to say they don't know. science is willing to say more research is needed and science is willing to say "hey we were wrong before it actually works another way". Science is as an adult who knows they don't know everything. Religion is like a teenager in thinking they know everything and demanding they are right. That alone is more than enough reason to side with science.

[@ScarSonic97]

Wooooo! What's this? A KZbin user randomly bashing religion on a science channel? Never seen that before ....

[@firstlast-fr1le]

@@ScarSonic97 Now see, that's what i like. Someone who can appreciate A novel idea. Never know what you will find on KZbin.

[@heatherkaye8653]

Mentally stable people can easily grasp both! Why does it have to be one or another?

[@firstlast-fr1le]

@@heatherkaye8653 "There can be only one". See if you follow science and evolution, then the universe is some 14 billion years old. If you follow religion then the universe is only a few thousand years old. They can not possibly both be true and accurate. That is just the tip of all the different reasons it has to be one or the other.

[@heatherkaye8653]

@@firstlast-fr1le huh, well at least these 23 very acclaimed scientist may beg to differ.... Professor Christian Anfinsen* (Nobel Prize for Chemistry, biochemistry of RNA, Johns Hopkins University): “I think that only an idiot can be an atheist! We must admit that there exists an incomprehensible power or force with limitless foresight and knowledge that started the whole universe going in the first place.” Professor Werner Archer (Nobel Prize for Physiology/Medicine, restriction enzymes and molecular genetics, University of Basel): “I do not think our civilization has succeeded in discovering and explaining all the principles acting in the universe. I include the concept of God among these principles. I am happy to accept the concept without trying to define it precisely. I know that the concept of God helped me to master many questions in life; it guides me in critical situations and I see it confirmed in many deep insights into the beauty of the functioning of the living world.” Professor D.H.R. Barton*** (Nobel Prize for Chemistry, conformational analysis in organic chemistry, Texas A&M University): “God is Truth. There is no incompatibility between science and religion. Both are seeking the same truth.” Professor Ulrich Becker** (High energy particle physics, MIT): “How can I exist without a creator? I am not aware of any answer ever given.” Professor Steven Bernasek (Solid state chemistry, Princeton University): “I believe in the existence of God. His existence is apparent to me in everything around me, especially in my work as a scientist. On the other hand I cannot prove the existence of God the way I might prove or disprove a (scientific) hypothesis.” Dr. Francis Collins* (Medicine, former Director of the Human Genome Project, Director, National Institutes of Health, author of “The Language of God”): “Freeing God from the burden of special acts of creation does not remove Him as the source of the things that make humanity special, and of the universe itself. It merely shows us something of how He operates.” Professor Freeman Dyson*,*** (Theoretical physics, Princeton Institute for Advanced Study): “I do not make any clear distinction between mind and God. God is what mind becomes when it has passed beyond the scale of our comprehension. God may be either a world-soul or a collection of world-souls. So I am thinking that atoms and humans and God may have minds that differ in degree but not in kind.” Sir John Eccles*** (Nobel Prize, neurochemistry): “If I consider reality as I experience it, the primary experience I have is of my own existence as a self-conscious being, which I believe is God-created.” Professor Manfred Eigen (Nobel Prize for Chemistry, fast reaction kinetics, Director Max Planck Institute for Biophysical Chemistry, Gottingen): “…religion and science neither exclude nor prove one another.” Professor John Fornaess* (Mathematics, Princeton Univ.): “I believe that there is a God and that God brings structure to the universe at all levels from elementary particles to human being to superclusters of galaxies.“ Professor P.C.C. Garnham*** (Medical protozoology, University of London): “God originated the universe or universes… At some stage in evolution when proto-humans were sufficiently advanced, God created the human soul… By faith and by appreciation of scientific necessity, God must exist.” Professor Conyers Herring* (Solid state physics, Princeton University): “We live in a hard, real universe, to which we have to adapt. God is a characteristic of that universe-indeed a miraculous characteristic-that makes that adaption possible. Things such as truth, goodness, even happiness, are achievable, by virtue of a force that is always present, in the here and now and available to me personally.” Professor Vera Kistiakowsky* (Experimental Nuclear Physics, MIT and Mount Holyoke College): “I am satisfied with the existence of an unknowable source of divine order and purpose and do not find this in conflict with being a practicing Christian.” Professor Sir Neville Mott*** (Nobel Prize for physics, solid state physics, Cambridge University): “...we can and must ask God which way we ought to go, what we ought to do, how we ought to behave.” Professor Robert Neumann* (nuclear and isotope chemistry and physics, Princeton University): “The existence of the universe requires me to conclude that God exists.” Professor Edward Nelson* (Mathematics, Princeton University): “I believe in, pray to, and worship God.” Dr. Arno Penzias* (Nobel Prize for physics for first observation of the universal microwave background radiation, Vice-President for Research, AT&T Bell Laboratories): “…by looking at the order in the world, we can infer purpose and from purpose we begin to get some knowledge of the Creator, the Planner of all this. This is, then, how I look at God. I look at God through the works of God’s hands and from those works imply intentions. From these intentions, I receive an impression of the Almighty.” Rev. Professor John Polkinghorne*** (Theoretical elementary particle physics, President, Queens College, Cambridge University): “I take God very seriously indeed. I am a Christian believer (indeed, an ordained Anglican priest), and I believe that God exists and has made Himself known in Jesus Christ.” Professor Abdus Salam*** (Nobel Prize for physics (elementary particle theory), Director, International Centre for Theoretical Physics, Trieste): “Now this sense of wonder leads most scientists to a Superior Being-der Alte, the Old One, as Einstein affectionately called the Deity-a Superior Intelligence, the Lord of all Creation and Natural Law.” Professor Arthur Schawlow* (Nobel Prize for Physics [laser physics], Stanford University): “It seems to me that when confronted with the marvels of life one must ask why and not just how. The only possible answers are religious… I find a need for God in the universe and in my own life.” Professor Wolfgang Smith (Philosophy, Mathematics and Physics, Oregon State University. His theoretical work provided the key for solving the re-entry problem in space flight): “If the physics of the last century prompted atheism, the physics of today is inciting at least the most thoughtful of its votaries to re-examine ‘the question of God.'” Professor Charles Townes* (Nobel Prize for physics, development of the MASER/LASER, University of California, Berkeley): “I believe in the concept of God and in His existence.” Professor Eugene Wigner* (Nobel Prize for physics, applications of symmetry principles-group theory to quantum mechanics-Princeton University): “The concept of God is a wonderful one-it also helps us makes decisions in the right direction. We would be very different, I fear, if we did not have that concept.”

[@Fiirow1]

On a completely unrelated note... Have anyone else noticed that the amount of shitposting all over the web as increased significantly after the quarenteen... ? It's almost as if the majority of of the population do not know how to behave themselves, when there's no immediate threat of a beating.

[@NajwaLaylah]

Yes; yes, I have.

[@Fiirow1]

@@NajwaLaylah Cheers ^^ Not just me then...

[@SpiralCee]

Great video but can I make a suggestion? Can you have the person narrating say the numbers with the points? I was listening and not watching the video and when she switched topics, eg. from #1 to #2, I didn't realize she'd moved on to a new topic because I wasn't watching the screen to see the number and title on the screen. Thanks.

[@jareknowak8712]

We know the temperature, size and architecture of stars, milion light years from us, but we dont know what happening inside Earth....

[@bdsingletary]

My God those glasses make her lyrically beautiful

[@mikel6668]

great video

[@jrlanglois]

Olivia has come a long way in her style of approaching presenting! What a badass! Solid video.

[@josephhudson7378]

It is always a bonus when she hosts these shows. I do like the channel.

[@alexandermiller2975]

the smirk when she says "the bedrock of geography"

[@nolesy34]

Guys: shes thinking about bed lol Her: flinstones meet the Flintstones yabba dabba dooo

[@Tinkerelly]

Humans: *evolves for millions of years in order for the species to survive* Humans today: I wonder how hot the core of the earth is???

[@lyreparadox]

You make puns, you get thumbs up!

[@epelly3]

Love the irony bc bedrock is actually the pavement of geology

[@nerdo_blackxoxo9946]

I love this channel everyone is amazing keep it up guys

[@fairweathertrains3029]

We love Olivia! That smile 😍

[@bobthompson4319]

So BEAUTIFUL

[@AbhishekKumar-xi4sf]

The lady , narrator of this video looks like cheetah girl to me from the movie wonder woman . The gesture ,looks ,accent are very same.😂😂

[@mikebar42]

Me and the earth have a lot in common... Sometimes I'm an introvert and sometimes extrovert

[@Fred100159]

I often wondered how lopsided the Earth was while it had supercontinents. Did it alter the rotation and / or orbit of the Earth, and to what degree did this affect the global climate(s)? I kind of imagine it moved like an athlete winding up to throw the hammer in Track & Field. What about tracking time for days, months, years. Did a 24 hour day have segments where the rotational speed increased while other segments decrease? For example, say the Earth today rotates 90 degrees between 6am and noon. When a supercontinent was present, did the rotation through those 90 degrees occur at a faster or slower rate compared to the 90 degrees the Earth rotated between 6pm and midnight - dependent on the location of the supercontinent on the sphere? I'm not up on my Astrophysics, but I still like to ponder such ideas...

[@likethehotels]

BEDROCK. Take my reluctant upvote, you evil pun-mongers.

[@anndroid5147]

Oh do I love Geology??? I LOOOOVE GEOLOGY!!! Go Rocks!!

[@Kevin-wo3kp]

Please allow subtitles. Thank you.

[@larrysalyers7040]

When all the ice on Earth is finished melting , how much land will be left ,does anyone know.

[@alfredsutton7233]

There are estimates out there. Try Google. Generally a lot.

[@thenovicewildcamper9192]

Your voice is so soothing to me😕 I seem to learn more when im listening to both you and hank 😆

[@Bimtavdesign]

@Ciayrra Parrish true!!!!

[@SpeedOfTheEarth]

@@Bimtavdesign she's been my favourite host from her very first video!

[@juanmi250]

You lot must fall asleep to frogsong. Raaaaarp

[@markward3981]

I really respected when scientist admitt when they don't know.

[@dg5028]

How long before a computer simulation of planetary formation explains it? Unless there’s already multiple explanations created by current simulations?

[@nicstroud]

The link for the Washington thing is............... where?

[@markrowland1366]

Worth a consideration.

[@elainexu5641]

Question: how do we get vitamin D from sunlight? And can I get vitamin D from sunlight through a window?

[@alfredsutton7233]

Natural made-in-the-body vitamin D requires the UV part of the spectrum. Glass tends to filter out UV. As a result, I’d have to say that you’re not going to make much vitamin D sitting indoors behind a window.

[@sevenstar144]

3. Still relates to events that happened billions of years ago when the planet was almost destroyed. Same with #4. Sorry I'm writing these as i watch. You'll likely think I'm crazy but I'm right

[@maxplaysgamez-sharesgaming1756]

We Humans Thought We Are Masters Of Our Earth, And Yet We Know Nothing Much About The ONE AND ONLY Planet In The Universe To Have Harbored Life As We Know It And It's Ocean. Proceeding To Pollute It Ever More Aggressively, Vigorously Every Single Day. As A Human Being, I Felt Ashamed Of This Fact That We're Dealing With. Thanks Sci Show, You Guys Have Been Such An Inspirational Channel That Always Encourages All Of Us To Unite And Discuss About The Problems That We're Facing In This World. Nowadays, My Neighborhood, My Family And I Loved Your Channel And You Guys Have Been Such An Inspiration That Encouraged All Of Us To Help Clean Up Our Neighborhood, Participated In 4ocean Sea Side Cleaning Activities And Practiced The Habit Of Recycling Whenever We Can To Help Conserve And Preserve This Beautiful Planet, A Safe Haven In Our Universe, That We All Called *"HOME".* 🙏❤

[@kemphoss-4791]

I recognize that bedrock, on my way

[@collinriscal8103]

I love these videos where since is made understandable

[@Dichtsau]

what i learned from this video: _the hollow-earth-weirdos were_ sorta _right when they claimed that there's a sun inside the earth._ :'D

[@MariankGonzalez]

Plate tectonics is the bedrock of geology! Yes! XD

[@davidp.5598]

Well, she was right. We just don't know.

[@YouAskedForThis563]

According to scientific theory, earth was hit by another planet and that is how the moon and life was created.

[@abiroro]

Her: understanding plaque techtonics is the *bedrock of geology* Me: angrily pauses the video for fifteen seconds

[@NajwaLaylah]

When plaque tectonics happen, it's time to brush those teeth!

[@seandepoppe6716]

Thank you Joe for keeping it real as always. Although... I miss the jokes 😉👍

[@gregwiens9146]

#6, Don't forget to add that right in the center is a sphere of uranium that is decaying and that heat needs added to the core.

[@gregwiens9146]

@James Sloan I'm sure that somebody much smarter than myself could come up with a good estimate for how much Uranium is in the core and if it would have separated out from the Iron/Nickel core. Uranium is over 4 X as dense as Iron. Would they mix or separate out? Because of the great difference in density I think that they would separate, but then again the incredible pressures are so hard to imagine, who knows what they would do.

[@abhith8225]

Kindly add subtitles😍😍

[@thumpyloudfoot864]

Sea ice blocked the Mediterranean, and when the ice blocking in Lake Agassiz melted and broken open it drained into the the Atlantic ocean significantly raising the sea level which then melted the sea ice flooding the Mediterranean...

[@mr.psychix100yearsago2]

The most complex situations often have surprisingly simple explanations...

[@CrankyPantss]

Very interesting. Thanks, Olivia.

[@JM-co6rf]

she still won't have sex with you. nice try tho

[@PilotExplorer]

“Tectonic plates”

[@feddy11100]

I would love to get together with you guys and do a physical anthropology or archaeology series!

[@connecticutaggie]

Maybe they could use evidence of the motion of the Yellowstone hot spot to correlate the indication from the Hawaiian hot spot. Are there other hot spots they could use?