The Fundamental Forces of Nature

31/10/2013 19:37

here are 4 fundamental forces that have been identified. In our present Universe they have rather different properties:

The strong interaction is very strong, but very short-ranged. It acts only over ranges of order 10-13 centimeters and is responsible for holding the nuclei of atoms together. It is basically attractive, but can be effectively repulsive in some circumstances. [Read more] ...