Quartz crystal oscillator of a quartz clock

Physikalisch-Technische Reichsanstalt, Berlin, c. 1934

Adolf Scheibe (1895-1958) and Udo Adelsberger (1904-1992) were pioneers of electronic timekeeping. As from 1932, they began developing quartz clocks at the Physikalisch-Technische Reichsanstalt of Berlin. Thanks to these timekeepers, they were able to demonstrate in 1934 that astronomically measured time fluctuates unpredictably. They had literally captured time up in the heavens and brought it down to earth.

Inv. 2005-101