> Now electro-mechanical clocks are making the comeback, in the form of MEMS oscillators in consumer electronics Note that quartz crystals are also electro-mec

> Now electro-mechanical clocks are making the comeback, in the form of MEMS oscillators in consumer electronics Note that quartz crystals are also electro-mechanical devices, as the quartz crystal is physically vibrating. This is particularly easy to see in lower-frequency quartz oscillators, such as the common 32.768KHz ones, that physically look and act just like tuning forks: https://www.youtube.com/watch?v=_2By2ane2I4 https://www.youtube.com/watch?v=_2By2ane2I4 This also means that mechanical vibration/shock can throw off quartz crystals: https://www.youtube.com/watch?v=M4Z7CjxfUU8 https://www.youtube.com/watch?v=M4Z7CjxfUU8