Navigation
Recherche
|
Why silent light switches are banned
jeudi 6 octobre 2022, 20:21 , par BoingBoing
You've probably encountered silent light switches before. Unlike regular light switches, which make a distinctive click, silent light switches operate smoothly without a sound.
This video takes apart a silent light switch to reveal the secret — it contains a drop of liquid mercury in a sealed capsule. — Read the rest
https://boingboing.net/2022/10/06/why-silent-light-switches-are-banned.html
|
56 sources (32 en français)
Date Actuelle
sam. 21 sept. - 03:21 CEST
|