Two balls are connected by a tube. Through the medium of air, the subtly varying pressure applied when squeezing a ball is transmitted even over a long distance.
Production: KUWANO Koki (Hokkaido Research Organization)
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Two balls are connected by a tube. Through the medium of air, the subtly varying pressure applied when squeezing a ball is transmitted even over a long distance.
Production: KUWANO Koki (Hokkaido Research Organization)