What holds the moon up? Moonbeams!
Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart
↓ More info and sources below ↓
According to Newton’s law of gravitation, the sun should “pull” way harder on the moon than the Earth does. So does the moon actually orbit the Earth? Why?
Special thanks to Ariel for submitting this awesome question to our Facebook page!
Hill Spheres and lunar orbit: http://blogs.discovermagazine.com/badastronomy/2008/09/29/the-moon-that-went-up-a-hill-but-came-down-a-planet/#.VULLHq1Viko
True shape of moon’s orbit: http://www.math.nus.edu.sg/aslaksen/teaching/convex.html
Newton’s law of gravitation vs. Hill Sphere: https://van.physics.illinois.edu/qa/listing.php?id=18501
Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below!
Follow on Twitter: http://twitter.com/okaytobesmart
Follow on Tumblr: http://www.itsokaytobesmart.com
Follow on Instagram: http://instagram.com/jtotheizzoe
It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
Follow me on Twitter: @jtotheizzoe
Email me: itsokaytobesmart AT gmail DOT com
For more awesome science, check out: http://www.itsokaytobesmart.com
Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios
Joe Hanson - Creator/Host/Writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen Inc.
Kate Eads - Associate Producer
Stephen Bohls - Editing/Motion Graphics/Animation
Katie Graham - Director of Photography
John Knudsen - Gaffer
“Ouroboros” by Kevin MacLeod
Other music via APM
Stock images from Shutterstock, stock footage from Videoblocks
French subtitles by Alessandro Dal Cero
Last week’s video:
What’s The Loudest Possible Sound? https://www.youtube.com/watch?v=wi_aawsChqA
Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs
Why Vaccines Work https://www.youtube.com/watch?v=3aNhzLUL2ys
Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA
Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8