8 Scientific Theories That Totally Change Captain America: Civil War

6. Ant-Man

Ant-Man's ability to still kick seven shades of you-know-what out of his enemies whilst he is less than and inch tall has been explained away by the fact that he is able to maintain his original mass.

This, perhaps inadvertently, also solves another physics problem with rapid size changing. Generally speaking, if something were to suddenly shrink down to a 1000th of their original size, the amount of energy this would release would be enough to blow a not-insignificant hole in most of Manhattan.

Unfortunately, avoiding this creates its own problems. For starters, his density would sky-rocket to somewhere in the region of a white dwarf star and cause him to sink straight through the Earth every time he miniaturised.

We have the same problem at the other end of the spectrum when he swells himself to the size of a tower block. Assuming the same rules apply, this would mean that his density would plummet, making him more likely to blow away at the tiniest breeze than smush his opponents into the ground. Getting a slap from Big-Ant-Man would feel more like jumping to the side of a bouncy castle than a deadly swipe.