Within itself the organism possesses a repulsive force toward pain sources.

One possibility, first suggested and then rejected by Einstein, is that space itself has a repulsive force.

Thus the reflection could simply be explained by a repulsive force, which would make the phenomenon not quite so surprising.

Thus dark fluid becomes a repulsive force, with the same effect as dark energy.

The ideal gas law must be corrected when attractive and repulsive forces are considered.

The normal force is due to repulsive forces of interaction between atoms at close contact.

"Could it be because of that repulsive force you mentioned?"

I think there may have been a slight repulsive force at 1cm separation.

Furthermore, this repulsive force increases the closer the two particles get to each other.

Therefore, oxygen atoms need to stay far from each other in order to reduce the repulsive force between them.