Compositional and mechanical layers of the earth | Cosmology & Astronomy | Khan Academy
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- čas přidán 25. 07. 2024
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Crust, mantle, core, lithosphere, asthenosphere, mesosphere, outer core, inner core. Created by Sal Khan.
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Cosmology & Astronomy on Khan Academy: The Earth is huge, but it is tiny compared to the Sun (which is super huge). But the Sun is tiny compared to the solar system which is tiny compared to the distance to the next star. Oh, did we mention that there are over 100 billion stars in our galaxy (which is about 100,000 light years in diameter) which is one of hundreds of billions of galaxies in just the observable universe (which might be infinite for all we know). Don't feel small. We find it liberating. Your everyday human stresses are nothing compared to this enormity that we are a part of. Enjoy the fact that we get to be part of this vastness!
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I watched this entire segment of videos and this was a great way to end it. I really like the comparison between the chemical and mechanical layers of the earth!!!!
Who decided that naming two different things the mesosphere was a good idea?
Me
me and gavin did
Me, Gavin and Keshav did
Me, gavin, Keshav and Hemanth did
@@038Dude me Gavin and Keshav Hemanth Ali and plain did
Thanks, awesome summary of the earth layers!
Very interesting! Thank you.
I've been searching for this explanation all over the internet. This has been the best explanation. Thanks !!
t
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I have a quiz this morning, and this was a great visual aid for my Oceanography 201 class. Awesome video.
Who is disliking this? Ima find y’all. This help me learn UwU. And I enjoy this more than school UnU. :)
Amazing explanation. I had a few confusions....but it sorted it all out!!!Thanks for this video!
Nice quick explanation about the differentiation of the earth. Glad you fixed the part about the mantle! It is propperly explained now =) ty. Maybe you should make a video about convection cells explaining the tectonic movements.
Nice work!
Thanks for uploading this!
Thanks sal, great video.
my science teacher really needs to watch this video.......
Awesome video and explanation man. Thank you.
This need updating:
-They have discovered in 2021 the Inner core is made of the 2 parts, solid inner most older with magnetism one way, and solid outer-inner younger with its magnetism about 90 degrees off.
-Then the already , semi-known the liquid outer core which they think gives our magnetic field (which is getting turbulent causing the field to flip),
-The known D boundary (really unknown, maybe crystalline),
-The inner mantle (including the known large low shear velocity [hot] provinces under Africa and the Pacific Ocean, causing plumes like Hawaii and diamond tubes), and the outer mantle - all which which make up the mesosphere (maybe not all rigid),
-The plastic asthenosphere, mostly rigid lithosphere and crust (including the various tectonic plates.)
Finally another person that knew this😂
Well, thanks for the info
Thanks! I learned a lottt
amazing
nicely explained
thanks khan you are the best👌👌👌👌👌👌
thanx
It awesome
Just tryna pass dont mind me
intresting
Thx!
Amazing
love it
My mom had me watching this as a science lesson cuz I'm home schooled
Man i am learning khanacademy and i have grade 5 test
At last I understood this......
So this will teach me everything I'm supposed to know?
no it won't
he spelt ''deep'' wrong 8:11
You spelled deep wrong at 8:27
Hi
Awesome Vid, but it gets a bit boring for us 6th graders...
yea IKR
even 8th graders
lol
Nothing bugs me more than an American using km for distance! Hello what about your fellow Americans, "mate??!!" Did we not all learn mi as the unit of measurement???
wrong
By the way he don't know how to spell.
doesn't*
What happened to ur grammar?
waz up people? what is the point in the video. he just goes blah blah
what is the point of watching this video if you're still stupid?
Just tryna pass
We’re you dropped on your head as a kid?
Get out of here you piece of trash
@@kingstonshine3727 ooof
boring!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ur boring
Try understanding it....and loving it.
It won't be boring anymore
Quite interesting according to me.
Ur boring like what heather tan said
Maybe you’re just stupid