Weakest force

Weakest force
Who
Unknown
Where
Not Applicable (occurs throughout the universe,)
When
01 January 0001
There are four fundamental forces in the universe which account for all interactions between matter and energy. They are the strong nuclear, the weak nuclear, electromagnetic, and gravitational forces. These four forces are given relative strength values, with the electromagnetic force given the value of 1. Gravitational force, the weakest of the four forces, has a strength of 10 to the minus 40, relative to electromagnetism. The force of gravity (along with electromagnetism) has a range of infinity - every single atom in the universe is 'gravitationally aware' of every other atom. The force of gravity is theorised to be carried at the speed of light by tiny subatomic particles called gravitons. As of 16/11/2001, these particles still only exist in theory and have yet to be discovered. This does not mean that gravity itself is a theory, of course, as we observe it on a second-to-second basis during our everyday lives.

A good example of how much weaker gravity is compared to, say, electromagnetism, is that it is easy for a toy magnet to pick up a nail, while the whole of Earth's gravity is trying to pull it back down.