Why Astronauts left a reflector on the Moon! (ft. MinutePhysics) - Smarter Every Day 73

There's poop on the moon? MinutePhysics Explains! http://bit.ly/PoopOnMoon
Go Play with a Corner Reflector: http://dft.ba/-cornerreflector
FOLLOW SED ON TWITTER! http://twitter.com/SmarterYoutube
Music Download: http://bit.ly/SED_Album

Instead of saving for my kids' college, I make videos using the money I would have saved.
The thought is it will help educate the world as a whole, and one day generate enough revenue to pay for their education. Until then if you appreciate what you've learned in this video and the effort that went in to it, please SHARE THE VIDEO!

f you REALLY liked it, feel free to pitch a few dollars towards their college fund by clicking here:
http://bit.ly/KidsCollege