'The accuracy of the Quartz clock was surpassed in 1955 by one using this element, Cs'
Cesium
THE FABULOUS '50s: The accuracy of the Quartz clock was surpassed in 1955 by one using this element, Cs
The accuracy of the Quartz clock was surpassed in 1955 by one using this element, Cs
The accuracy of the Quartz clock was surpassed in 1955 by one using this element, Cs
THE FABULOUS '50s
Cesium
THE FABULOUS '50s