How does gravity differ from other fundamental forces?

1 Answer
Apr 1, 2016

The other forces are known to be transmitted by particles, gravity does not.

Explanation:

The electromagnetic force is effected by the photon. The weak nuclear force is effected by the W and Z bosons. The strong nuclear force is effected by the pions and more recently the gluons. These particles are the way the force is transmitted.

Gravity on the other hand is a consequence of the curvature of space time as described by Einstein's General Theory of Relativity.

The are theories about a graviton particle which transmits the gravitational force. There is however no evidence that this particle exists.