How We Figured Out That Earth Goes Around the Sun
631,718
Publicado 2015-10-20
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Sources:
csep10.phys.utk.edu/astr161/lect/retrograde/aristo…
csep10.phys.utk.edu/astr161/lect/retrograde/copern…
io9.com/5464810/the-earth-revolves-around-the-sun-…
www.universetoday.com/18097/the-earth-goes-around-…
earthobservatory.nasa.gov/Features/OrbitsHistory/
scienceblogs.com/startswithabang/2010/09/13/geocen…
www.realclearscience.com/blog/2014/08/technically_…
www.wired.com/2014/04/how-do-we-know-the-earth-orb…
www.universetoday.com/36487/difference-between-geo…
www.astro.umd.edu/~miller/teaching/honr229Xs11/lec…
hyperphysics.phy-astr.gsu.edu/hbase/cm.html
Todos los comentarios (21)
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Hey, that's my little animation at 3:45 ! Funny how these things get around. Thanks for crediting it!
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Can you imagine what will be proven wrong over the next 100 years? It bobbles the mime!
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2 dislikes. The Flat Earth Society is coming out in force already!
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If the Universe is truly infinite, then everywhere is the center of the Universe
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"HOW we figured out that earth goes around the sun?" "Copernicus did it" Ok, that is common knowledge, but HOW did he do it?! No need to be afraid that people won't understand you.
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0.000001% of the bodies in the solar system has 99.87% of the mass. #OccupySun
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So it's about 500 years since Copernicus, imagine the idea of heliocentricity was formed some 1.800 years before him by Aristarchus of Samos. The 200 BCE "Antikythera mechanism" is also based on the heliocentric model. Mind blowing.
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So if the earth / sun isn't the center of the universe, then what is? Interestingly enough, the center of the universe is literally you! (The center of the observable universe is exactly the thing that does the measurement)
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Long before Copernicus & Kepler, there was Aristarchus of Samos (310-230 BC) who held a heliocentric view and also claimed that the stars were actually distant suns. However, it seems his concept was wrongly defamed because of a translation error of Plutarch geocentric work apparently criticized those with a heliocentric view as "sun-worshipper."
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Thank you for this detailed and skeptical report.
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Yep! That part at the end showing the Sun's barycenter (center of mass) with respect to our neighboring planets . . . That's the "star's wobble". That's how you can find exoplanets, using the radial velocity method, as the light spectrum coming from the star changes due to Doppler shift as the star orbits its barycenter. But, it usually only works well for Jovian planets, though.
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All of us are technically in the center of our own observable universe. How adorable is that!?!
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I love videos like this that show the orignators of modern science.
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Cookies are delicious
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It's weird how I just learned this morning and now I hear it again
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2:37 : this graph is just WRONG! The sun is supposed to be at one of the ellipse's focals, not in the middle! How could you let THAT slide?
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Eratosthenes measured the radius using angles
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Happy Back to the Future 2 Day!!!
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I like how more correct Ancient Greek views which influenced Copernicus are just swept under the rug as random background noise that didn't matter.
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at 1:26 one of those "couple of Greek Philosophers" was Aristarchus of Samos. He used ANGLES to figure out the Sun was bigger than the Earth and Ergo, the Sun would be the center.
