Gravity and Branes

Summary

Can a small magnet pull or push something away from the entire Earth? The answer to this question is revealed in this video. According to the quantum gravity theory, all fundamental particles like quarks and electrons exist as vibrating sources of energy in three dimensional space. But particles such as gravitons exist in more than three dimensions. Forces such as the gravitational force exist in those dimensions and hence the force seems weak to us. Although it is impossible for us to picture more than 3 dimensions, on a tiny scale space has extra dimensions at every point. We experience less gravitational force because quite a bit of it “leaks” into those other dimensions.