[Willem Koopman aka Secretbatcave] was looking at a master clock he has in his collection which was quite a noisy device, but wanted to use the matching solenoid slave clock mechanism he had to hand.

She taught us to declutter our homes. Now, Kondo’s $75 ‘tuning fork and quartz crystal’ set is making people ask: what the blazes, Marie? Over the last year, Marie Kondo’s Netflix series – Tidying up ...

A 128Hz medical tuning fork appeared in my collection thanks to a friend! Have you ever used a tuning fork? According to Wikipedia, the tuning fork was invented in 1711 by British musician John Shore, ...