Question #15f2d

1 Answer
Nov 2, 2017

Gravity is the only force that has any significant effect on interstellar scales.


Weird, because gravity is impossibly, fantastically weak, compared to the other three fundamental forces but it is much longer range as it decreases in proportion to #1/r^2#

The electromagnetic force (the other long range one) is irrelevant too as we never get concentrations of charge equivalent to the concentrations of mass involved in stars/planets.