6 of Earth's Greatest Unsolved Mysteries
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- Опубликовано: 9 июн 2024
- While over 8 billion people have called Earth home for thousands of years, there are still many great mysteries that scientists have yet to unravel. Join Olivia Gordon for a new episode of SciShow, and learn about 6 fascinating things about our planet we haven't solved yet!
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Sources:
Plate Tectonics
onlinelibrary.wiley.com/doi/f...
www.britannica.com/science/pl...
serc.carleton.edu/NAGTWorksho...
people.earth.yale.edu/sites/d...
link.springer.com/content/pdf...
Messinian Salinity Crisis
www.nature.com/articles/natur...
www.clim-past.net/10/607/2014/
www.nature.com/articles/269383a0
www.researchgate.net/publicat...
www.nature.com/articles/s4159...
onlinelibrary.wiley.com/doi/f...
True Polar Wander
www.annualreviews.org/doi/abs...
science.sciencemag.org/conten...
pubs.geoscienceworld.org/gsa/...
agupubs.onlinelibrary.wiley.c...
www.sciencedirect.com/science...
climate.nasa.gov/news/2805/sc...
agupubs.onlinelibrary.wiley.c...
Core Temperature
science.sciencemag.org/conten...
Supercontinent Cycle
Murphy et al 2009
www.researchgate.net/profile/...
www.researchgate.net/publicat...
www.sciencedirect.com/science...
Murphy and Nance 2012 s3.amazonaws.com/academia.edu...
www.researchprospect.com/wp-c...
Flood Basalts
www.nature.com/articles/natur...
www.tandfonline.com/doi/abs/1...
tbh scishow is a breath of fresh air in these bizzare times, thanks guys
Bizzaro indeed
Yes.
This still rings true towards the end of the year.
*these
If you want to be poetic, spell check.
Good lord, has it really been a year?
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?
this is interesting!
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.
@@EggnogTheNog If you go back in time far enough (and you subscribe to the Out of Africa Theory), Africans *did* colonize Europe ... eventually.
It would either be really diverse and hostile, or super united and relatively peaceful
@@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.
"Bedrock"
Gneiss pun.
Geology humor is underappreciated. Everyone just takes it for granite.
❤️
@@slappy8941 you took my pun goshdangit
This isn't my home. I'm just visiting. Thanks for all the fish.
42
I was going to respond 42~but someone already did! 😂
Josh swimmerly it could just be 57 like usual. Although you might be right.
Have you guys seen the movie hitchhikers guide to the Galaxy?
@@joshswimmerly7110 that's what you get when you multiply six by nine, right?
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!
“ ‘Bedrock’ of geology.” Ha, really like that... Pungea.
Gonedwanaland
Goodonealand
Get out
Boooo
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.
Hey, SciShow, can you turn on captions for us Deaf and HoH folks?
Totally.
Hunter Hofmann you can turn on CC on RUclips
@@CelloandAnayaJ have you ever actually used that option? RUclipss subtitles are a joke that are so far off of what's actually said its sad.
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.
@@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
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.
Nah dog, imagine surfing that
@@WeatherManToBe Imagine going over those falls in a barrel!
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: ruclips.net/video/M5l8BhyGE68/видео.html
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.
Two years ago I hadn’t heard of Hank Green. Now I see him seven days a week!
Sounds like Earth's history isn't...
Written in stone.
Omega Lightning oh no you didn’t 😂
Ba dum chi
Yeah people's theries usually crumble
Thought u were gonna say "solid"
@@seanjuneau1802 Same lmao
Imagine if Gibraltar closed today. We'd never let that happen and just open it right back up again.
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.
Did you fall out of an insane asylum's window?
@@m2heavyindustries378 was pushed out
Shout-out to Olivia for being such a great host 🙌🏻
@ThePark 627 weirdo
@ThePark 627 that's... pretty malicious bro
Yeah, maybe if she wouldn't deep fry the end of every sentence I could get through more than 15 seconds.
RubixB0y literally__ every__sentence.
ThePark 627 bruh she looks like a scolding middle aged kindergarten substitute
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!
The Mediterranean Sea really said “alright ima head out”
I'm here for science puns and science facts, sometimes in that order :D
+ 😂😂
Well, you're not here for the grammar lessons. At least you'll learn something anyway.
It's a youtube comment, not a book.
@@natalieann xD
I'm studying geology and this video tickled all my sweet spots! =D
Really, *really* interesting stuff!
Haha me too!
do you have to be good at math to study geology?
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.
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.
1:13... Oh please. Put 2 geologists in a room and you'll get 4 opinions
Delamination is the way I remember my driver's license is about to expire.
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
"The minor wobbles and the major twists - hallelujah, hallelujah.."
Olivia, I really enjoy your hosting 🥰 thank you for keeping science interesting! I'm always interested, but you know, for everyone else 🖖
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.
We are gonna be going back to the stoneage once covid finishes what it's started
MaekarManastorm hilarious
@@bopa3933 ikr
@@deletedchannel9945
I'm Not Norm
@@deletedchannel9945 a nonsheeple
Those "ophiolites" are, if I have my Greek right, "snake stones"? Why are they called that?
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
James Gaines not clicking your virus filled link
Blue Sap what are you even on about? What a troll.
Maybe because they "crawl" up through the earth's mantle?
@@bluesap7318 he's on the sci show staff you paranoid dope.
The 7th mystery of earth is that the anatomy model in the science classroom moves on it's own after 7 PM.
Utterly fascinating, thank you everyone!
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
I love you sci-show. Keep up the good work.
0:51 The face of sheer satisfaction after dropping that pun is awe-inducing in its own right.
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?
I'm so glad that she fixed her way of monotonous speech. I'm so loving it. Way to go. Love it💯💯
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.
Me too...
1. Plate tectonics
2. Supercontinents
3. Messinian Salinity Crisis
4. Flood Basalts
5. Earth's wobble
6. Earth's Core Temp.
Flood basalt mystery been keeping me up at night...
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😄
Reminds me of Hamilton Morris
I'm watching this too late at night and I think a few brain cells imploded.
I want the opening of this video as ringtone.
Erm, there are two different Australian Plates at 0:35. I'm guessing the blue one should read "Antarctic Plate".
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.
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.
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
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.
I love this channel everyone is amazing keep it up guys
I liked this video. I learned a lot.
0:49 I groaned so loud lmao
Bedroccccckkk
It is always a bonus when she hosts these shows. I do like the channel.
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.
Kyle Hill might be able to help with that
great video
So BEAUTIFUL
I love these videos where since is made understandable
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.
Olivia has come a long way in her style of approaching presenting! What a badass!
Solid video.
Very cool
She’s got a geography teacher look
I feel like she will break down on me anytime, just like my geography teacher
@@monkestronk1227 factoids effect her feeling and her feeling is what she'll call fact and yes she will breakdown
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
Miss you, Olivia
Worth a consideration.
The last time I was this early, you could walk from North America to Asia.
"We can't just drill down there" - The cast of "The Core" would like a word...
this is really interesting and all, but watching it while getting a little 4.0 magnitude aftershock is highly unsettling.
I would love to get together with you guys and do a physical anthropology or archaeology series!
We love Olivia! That smile 😍
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
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.
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.
@@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.
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!
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.
@@reddragon2335 I'm a fiction writer, if anything I'll maybe write the book that inspires them though! :D haha
Mystery solved - thanks.
We know the temperature, size and architecture of stars, milion light years from us, but we dont know what happening inside Earth....
How long before a computer simulation of planetary formation explains it? Unless there’s already multiple explanations created by current simulations?
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.
the smirk when she says "the bedrock of geography"
Guys: shes thinking about bed lol
Her: flinstones meet the Flintstones yabba dabba dooo
Thank you Joe for keeping it real as always. Although... I miss the jokes 😉👍
This video rocks
You make puns, you get thumbs up!
The most complex situations often have surprisingly simple explanations...
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...
The lady , narrator of this video looks like cheetah girl to me from the movie wonder woman . The gesture ,looks ,accent are very same.😂😂
Thanks
My God those glasses make her lyrically beautiful
Thank you for giving me something that isn't about Coronavirus. 😂
OMG ! YESSSSS
I recognize that bedrock, on my way
Kindly add subtitles😍😍
Very interesting. Thanks, Olivia.
she still won't have sex with you. nice try tho
Love the irony bc bedrock is actually the pavement of geology
Please allow subtitles. Thank you.
Plate tectonics is the bedrock of geology! Yes! XD
This should've been called "6 things we still don‘t know about earth's geography"....
RoccoBuzz *geology
Geology is the study of the Earth
This has geography, geology, geophysics and several others too technical to be known without you googling it...
Plate techtonitism?
Oh do I love Geology??? I LOOOOVE GEOLOGY!!! Go Rocks!!
I really respected when scientist admitt when they don't know.
Space is the final frontier, but Earth is the continuing mission... :P
Well, she was right. We just don't know.
‘The bedrock’...oh please!
Crustal displacement according to some can happen in decades and not millions of years. Be interesting to know for sure.
When all the ice on Earth is finished melting , how much land will be left ,does anyone know.
There are estimates out there. Try Google. Generally a lot.
How about abiogenesis? Specially the cytoplasm and everything else being encapsulated by the cell membrane?
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".* 🙏❤
BEDROCK. Take my reluctant upvote, you evil pun-mongers.
The link for the Washington thing is............... where?
“Tectonic plates”
Me and the earth have a lot in common... Sometimes I'm an introvert and sometimes extrovert
Plate tectonics probably dates clear back to the (possible) synestia phase of the Earth-moon system, as the first rafts of slag forming on the liquified planet as it first decoupled from the orbiting debris.
My favorite earth science field; geology :D
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?
Your right.
I Didn't know the earth was our home.😆