The 1970 World Expo in Osaka, Japan had the theme of "Progress and Harmony for Mankind," and drew record numbers. Some 64 million people from 77 countries attended. One of the more unusual objects on display was this Sanyo Ultrasonic Bath. The demonstration model would

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At the 1970 World Expo in Osaka, Japan, Sanyo exhibited an Ultrasonic Bath machine that provided a 15-minute cycle involving water jets, ultrasonic bath, hot rinse, and drying with warm air, as well as germ-killing infrared and ultraviolet light. Although it never went into production, a modern version of the concept is being developed for the 2025 expo in Osaka with potential healthcare applications.

A Washing Machine for Human Beings, from 1970

And here I am in 2025 still wiping my ass with a paper square 😕

round and round you’re turning me

what if when it over dries you in the dryer, you start shrinking 😂.

Finally the Instant Revitalizing Machine from Earthbound is real!