If you’ve always wondered how a styrofoam cup would fare in deep ocean waters, then check out this interesting clip. Video after the break.

On the surface, at an atmospheric pressure of 14.7 pounds per square inch, the cup stands 4 inches tall. As the remotely operated sub descends, the pressure compresses the Styrofoam and the cup shrinks. Below 3,000 feet, under pressure 100 times greater than that at the surface, the cup shrivels to about half of its original size