Plate tectonics: Evidence of plate movement | Cosmology & Astronomy | Khan Academy
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Plate Tectonics -- Evidence of plate movement. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/plate-techtonics/v/plates-moving-due-to-convection-in-mantle?utm_source=YT&utm_medium=Desc&utm_campaign=cosmologystronomy Missed the previous lesson? https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/plate-techtonics/v/plate-tectonics-geological-features-of-divergent-plate-boundaries?utm_source=YT&utm_medium=Desc&utm_campaign=cosmologystronomy 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! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Cosmology & Astronomy channel: https://www.youtube.com/channel/UChNPnEkW8LYZ5Rwi8_A2-DA?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Comments
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Thank you!
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at 3:55 ohno
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nimekueiewa khan upo vizuri
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who uses khan academy, when you go to school?
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you took a minute to really get to the point of evidence of plate movement I had to pause and really dig for the info but you were entertaining.
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thanx Khan.I'L surely ace the upcoming exam.Yep
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Nealadams website shows this expando-planet theory in detail for not only our earth but other planets as well. Implication is an ever growing planet and Pangea by way of a much smaller earth.
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Sal thanx alot, your videos have helped me understand science and other subjects much more easily :) thanx bro
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Could you do a video on the Coriolis Effect. I am having trouble understanding it. Thanks in advance!!
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THIS GUY DESERVE TO OWN A NOBEL PRIZE FOR OVERALL EDUCATION AMAZING GENIOUS THANK YOU
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Since Google disabled the colors for like and dislike buttons, 3/282 people miss their intended button.
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Sal is going to help me ACE (since I'm capable of passing) earth science this year!!
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why did the poles switch from one place to the other instantly in opposite dirrections, wouldnt it be a gradual thing?
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@lahoucine66 although new crust is being created are a spreading ridge, crust is being destroyed at convergent boundaries (subduction).
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what does he talk about?
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Good job ,,,'..😖😖dilke
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I don't believe in plate tectonics because it isn't in the bible and there is no evidence for it.
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By the way, the point was to say "Nice to see some real science concerning plate tectonics on this site for a change"
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I think the only thing that bugs me is when you get the people who say "No no no the earth is expanding and plates are not really being subducted, they just get overidden in the flow of plates which debunks GPS measurements but don't worry cause you won't see any evidence of growth and no we don't have a mechanism but science says that even if we don't have a way for mass to be generated, our theory still holds" I feel like I should go crawl into a science hole and just die...
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It would seem that since lava has been and still is and will continue to pour out that there would be a gradual shift.
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