The video posted by Wahl on YouTube shows him standing in the middle of a swimming pool holding a string that will pull the gun’s trigger aimed at him from 1.5m away. When the string is pulled, the bullet bursts out of the gun with as much power as it would above the surface. However, it does not even come close to hitting Wahl. The video shows that the bullet loses a lot of its momentum before it sinks to the bottom, which is not even halfway to its mark. And the reason for this is due to resistance underwater. According to the video, “It’s harder to create movement in water than in air, because water molecules are closer together than air molecules.” We all are aware that it is difficult to move in water than out of it but the extent to which it slows something as streamlined as a bullet is far more impressive than one can imagine. Check out the video below to see Wahl’s impressive experiment with the underwater gun.