Another gem from the June 1977 issue of The Futurist, an excerpt from Stephen Rosen’s book Future Facts: The way things are going to work in the future of technology, science, medicine and life (available for a penny on Amazon!).
Egg-shaped “People Washer” is an ultrasonic bath developed by the Sanyo Electric Company of Japan. The machine showers and bathes the body, cleans the skin, massages the muscles, and dries the person off.
To take a bath, the bather selects the water temperature, climbs inside the egg, and starts the machine. The machine first gives the bather a warm shower, then begins ultrasonic washing with bubbly warm water. Then the bath fills with warm water to a set level, at which point the water intake automatically shuts off and the hot water begins to whirl, cleaning the body even more thoroughly. While the water whirls, small rubber balls float around in the water, massage the skin, and relax the muscles. After seven minutes of washing and rubber-ball massage, the bath water drains from the sphere and the body is reshowered for two minutes. The shower and the ultrasonic waves cease and the water is drained out. Finally there is a dry cycle during which low moisture air circulates through the chamber. The entire cycle takes 15 minutes.
As crazy as this sounds, it looks like a version of it actually got made for taking care of elderly folks.