NRK Viten, a channel that focuses on science experiments and explosions, made this video to show how hard it is to create movement in water versus air by shooting a gun.
Physicist Andreas Wahl created a rope-pull system so he could fire at himself while standing in front of a weapon* submerged in water.
Here we go!
Are you holding your breath? I can't breathe.
Boom! THE BULLET JUST FELL TO THE BOTTOM OF THE POOL AFTER ONLY A COUPLE FEET!
Phew!
This very wtf experiment actually worked because water molecules are closer together than air molecules, making it SO MUCH harder to create movement in water.