Archive: 09/3/2009

Optical atomic clock becomes portable

You imagine a clock to be different -- yet the optical table with its many complicated set-ups really is one. Optical clocks like the strontium clock in the Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig ...

Sep 03, 2009 4.8 / 5 (6) 2