Other Forces

[Darmowin]

I know there are 4 forces
Gravity,Electromagnetisim,Strong and Weak

Does anyone know about any other forces, that they think are in the universe.

[selfAdjoint]

The dark energy that causes the accelerated expansion of the universe might be considered a diffferent force, but if it is explained by the cosmological constant in Einstein's field equations, then it's just an aspect of gravity.

[Chen]

I thought the cosmological constant was one of Einstein's biggest flops? At least that's what I remember reading in some book...

[chroot]

Einstein introduced the cosmological constant for the wrong reason (he was trying to make his theory predict a steady-state universe). It seems there might a cosmological constant after all, but for an altogether different "reason," to explain the accelerating expansion of the universe.

- Warren