Gravity is literally forty orders of magnitude weaker than all the other known forces in the Universe. (That means the gravitational force is a factor of 1040 weaker than the other three forces. Or -- and I’ll write it out just this once -- we’d need to increase its strength by 10,000,000,000,000,000,000,000,000,000,000,000,000,000 in order to have it be comparable to the other known forces.)
MORE: http://scienceblogs.com/startswithabang/2012/09/19/the-greatest-unsolved-problem-in-theoretical-physics/
See also...
Experiment Corrects Prediction in Quantum Theory
http://www.sciencedaily.com/releases/2012/09/120919135312.htm
