If you’re a Genshin Impact player, you already know the thrill of summoning new characters, weapons, and unlocking exciting ...

More than one of our readers suggested we highlight this beautifully-shot process documentary about the laborious and precise manufacturing of piezoelectric quartz crystals in the early 1940s.

Quartz crystal outcroppings can be found all over ... with bonus points if the method was cheap and easy to scale up to industrial levels. The method they came up with, hydrothermal synthesis ...