Why Earth is not flat
1:31
Why Earth is not flat
3 个月之前
MSNStarTalk
How do we know Earth isn’t flat? For thousands of years people have known Earth is round. Ancient civilizations used the stars and shadows to figure it out. Mariners confirmed it by sailing around the globe. And when the space age began, we saw it with our own eyes — Earth is round! A NASA scientist explains how we’ve known for centuries that our planet is a sphere. Explore more: https://go.nasa.gov/4kITBXo | NASA Earth
1:54
How do we know Earth isn’t flat? For thousands of years people have known Earth is round. Ancient civilizations used the stars and shadows to figure it out. Mariners confirmed it by sailing around the globe. And when the space age began, we saw it with our own eyes — Earth is round! A NASA scientist explains how we’ve known for centuries that our planet is a sphere. Explore more: https://go.nasa.gov/4kITBXo | NASA Earth
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FacebookNASA Earth
Why is the Earth a Sphere?
24:30
Why is the Earth a Sphere?
2021年10月18日
ABC NewsAmelia Moseley
This is why the Earth isn’t a perfect sphere. 🌍 Now, don’t get too excited, we’re not saying it’s flat, but it does bulge at the equator (it’s an ‘oblate spheroid’!), because when things spin, they tend to flatten out. This is also why our solar system is all in one flat plane. As the big molecular cloud that formed our sun and planets started to condense, it was spinning faster and faster, meaning that all the matter flattened out into one disc. | Royal Institution of Great Britain
0:18
This is why the Earth isn’t a perfect sphere. 🌍 Now, don’t get too excited, we’re not saying it’s flat, but it does bulge at the equator (it’s an ‘oblate spheroid’!), because when things spin, they tend to flatten out. This is also why our solar system is all in one flat plane. As the big molecular cloud that formed our sun and planets started to condense, it was spinning faster and faster, meaning that all the matter flattened out into one disc. | Royal Institution of Great Britain
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FacebookRoyal Institution of Great Britain
Spheres of the Earth | Location, Characteristics & Interaction
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Spheres of the Earth | Location, Characteristics & Interaction
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Study.comElizabeth Friedl
Why Earth Isn’t a Perfect Sphere #earth #planet #didyouknow #mindblowing #usashorts
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Why Earth Isn’t a Perfect Sphere #earth #planet #didyouknow #mindblowing #usashorts
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