Physics Experiments
The End Of The World with Josh Clark
00:00
Why Gravity Is So Weak
Gravity is the force that keeps planets in orbit around massive stars and can catch light by the ankles. Particle physicists built the Large Hadron Collider to figure out why gravity is so weak compared to the other three fundamental forces. Some models see our four-dimensional world as just a tiny membrane, floating within an infinitely larger fifth dimension we can't sense. Others include as many as eleven total dimensions, most of which are curled up into extremely tiny coils at the corners of every point in the fabric of spacetime.
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