This image is not available for purchase in your country.

Caesium atomic clock

Caesium atomic clock

V565/0030

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

NATIONAL PHYSICAL LABORATORY (C) CROWN COPYRIGHT / SCIENCE PHOTO LIBRARY NATIONAL PHYSICAL LABORATORY (C) CROWN COPYRIGHT / SCIENCE PHOTO LIBRARY

Caption

Caesium atomic clock. In this clock, atoms of vapourised caesium-133 oscillate between two energy levels as they pass back and forth between magnets at each end of the resonator (long cylinder, lower left). Counting these oscillations is the basis of the standard second, where one second is about 9193 million oscillations. The development of the first caesium atomic clock by Louis Essen and Jack Parry in 1955 led to the replacement of the astronomical second with the atomic second as the standard unit of time. Photographed at the National Physical Laboratory, Teddington, UK.

Release details

Model release not available. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}