Why Can't Quantum Mechanics Explain Gravity? (Op-Ed)
• Space.comPaul Sutter is an astrophysicist at The Ohio State University and the chief scientist at COSI Science Center. Sutter is also host of the podcasts - See more at: http://www.space.com/32147-why-is-gravity-so-hard-to-understand.html#sthash.hqNoq2GI.dpuf
Quantum Mechanics explained in 60 seconds by Brian Cox - https://www.youtube.com/watch?v=fcfQkxwz4Oo.