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, ...

Long before Apple, Garmin, Timex and Casio, Accutron invented the world’s first fully electronic watch. In 1960, Bulova’s subsidiary introduced the Spaceview with a Tuning Fork movement, which used a ...