Should’ve looked up on the interwebs before doubting the glorious nation. 💢

In 1970, a peculiar invention made waves at the Japan World Exposition, a world’s fair devoted to “Progress and Harmony for Mankind.” The Ultrasonic Bath, created by Sanyo Electric Co.—the modern Panasonic Holdings Corp—was described as a “human washing machine,” and symbolized the future of hygiene. While it never took off commercially, the invention was stuck in the mind of a fourth-grader named Yasuaki Aoyama. Fast forward more than half a century, and the company he now leads has given this concept another try.

https://mymodernmet.com/human-washing-machine-science-co/

https://www.core77.com/posts/134471/A-Washing-Machine-for-Human-Beings-from-1970