How earth's tilt causes seasons | Cosmology & Astronomy | Khan Academy
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How being Earth's tilt causes seasons. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/earth-title-topic/v/are-southern-hemisphere-seasons-more-severe?utm_source=YT&utm_medium=Desc&utm_campaign=cosmologystronomy Missed the previous lesson? https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/earth-title-topic/v/seasons-aren-t-dictated-by-closeness-to-sun?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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it's actually a 23.5 degree angle
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thank you my book was so confusing
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What if. The earth 🌏 stops spinning??????????
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vlad is that you ?
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They sure do have tons of faith, don't they? To believe in all this chance. To believe that TRILLIONS of variables were perfectly ONLY a certain one specific combination for the POOFING into magical existance - every life form known...a combination that - unfortunately they must admit they have no clue of. So they call it chance. Chance that they cannot duplicate in the laboratory even ONCE, on purpose! Then they'll tell you that all this magical mystical life that can somehow inexplicably design itself UNINTELLIGENTLY, accidentally perfect every time - leaving no evidence lying around of mistakes ever being created...CAN EVOLVE into ENTIRELY new families and genus! Again - without ever leaving a fossil record ANYWHERE of - oh, I don't know...say, a MONKEY WITH FEATHERS and fins and gills!?
It just sounds to me like some people will believe in the wildest, silliest, most far-fetched, least logical, nonsensical idiocy imaginable. 'Since they cannot recreate the process intentionally - that they claim happened over and over again accidentally and only perfectly every time...they are telling us that they do not have a fucking BRAIN. -
Right now the tilt is 23.5 get a life. lol XD
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It doesn't work though because locations like the United Kingdom are outside of the tilt's influence completely.
The tilt is 23.4 degrees and the UK is situated more South than that - at approximately 32 degrees South of the North Pole.
So we can see from this that the UK is entirely outside of the influence of this tilt, because the tilt doesn't "overlap" with the UK - the tilt affects areas up to 23.4 degrees South of the North Pole and the UK (at 32 degrees South for the very top of Scotland) is nearly a full 10 degrees South of the area affected by this tilt.
Due to this fact, the UK needs to be experiencing 12h daylight and 12h night time every single day of the year and so does everywhere else below 23.4 degrees South of the North Pole and above 23.4 degrees North of what we call "the South Pole".
Since daylight hours do change for most people throughout the year, this concludes that we cannot be living on a spinning ball, tilted or not, that tilt doesn't alter the axial rotation being a constant, nor is it enough of a tilt to create differing day lengths for anything outside of the tilt. -
do it in slow mo with auto subtitles and see how it looks and soounds
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God bless!
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Thank you !
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I love your videos but you repeat yourself way too much.
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Thanks for using your personality of repeating that really helps those who are stressed out and tend to forget.
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In the planet's places and locations, there are different seasons because of the earth's revolution that goes on for 365 days. At 6 months, the earth is at the middle from where it started at the beginning of the year. Not every place on earth have the same season as one another.
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I lost my patience at "up and out, up and out, UP AND OUT... up and out", it could have been a 3 minute video.
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This video didn't mention that the earth is also closer and sometimes further way from the sun.
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The "tilt" of Earth's axis is a hoax. If it's true, then how can you explain the North star Polaris never changing it's degrees besides from the regular spin of Earth's day and night rotation. It's this tilt theory was correct then wouldn't Polaris be 23.whatever degrees away on December 21st, than from it's original spot on June 21st? I believe the seasons are caused by something else.
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I teach public education, and I love you Khan. When I can't explain it, I know you can! You back me up and I use your videos to re-enforce my own understanding.
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"This is the sun right over here, this is the sun, that is the sun..."
Urge to shout "Praise the sun!" intensifying. -
This is a great explanation. The only problem i had was that he kept saying "...tilted away from the earth..." when he should have said "..tilted away from the sun...". Anyways, i saw past that and i got the concept so thanks much.
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Thank God for Khan Academy. It is about time to bring back free education!
Our founding fathers wanted everyone to be educated. This is one of the main reason to live. We educated our selves since the day we are born. It is a never stopping thing we do. It is so fun! I really enjoy listen to Khan Academy.
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