The video answers questions about what would happen to bodily functions and systems if the body was in space. Sahana discusses the differences in air pressure in space versus on earth. She uses a vacuum to show what would happen to our organs without the necessary gas, temperature, and molecules.
The landlord changes the showerheads in all of the apartments, leaving Kramer, Jerry, and Newman with low pressure water. They turn to the black market to get the water pressure they need for a good shower.