Uploads from minutephysics

Currently Playing: What’s the source of gravity? (a common physics misconception)

Watch the full video: https://www.youtube.com/watch?v=IM630Z8lho8 Gravity is not dependent on mass, but rather on energy and momentum. Which is something that light has! This is why light can get bent when passing by a star, planet, or black hole. Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich