カリフォルニア大学サンタバーバラ校の物理学棟のエレベータに取り付けられたシンプルな加速度計:
An elevator in the physics building at UC Santa Barbara conveniently has an accelerometer in it. I couldn’t resist going up and down a few times just to watch the changes in the effective strength of gravity. pic.twitter.com/4tQmTfLmk1
— Steven Strogatz (@stevenstrogatz) June 1, 2022
日本のエレベーターの動きの滑らかさや静粛性に比べると・・・