Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Letter
  • Published:

Atomic Time and the Definition of the Second

Abstract

THE experience gained1 with the cæsium resonator has shown that it can be used for establishing a unit of time interval with great ease and accuracy, and it is now important to decide how this new facility can best be incorporated into the general framework of time measurements. It is necessary first to outline the present position with rather more practical detail than has been given in the recent correspondence in these columns2,3.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Similar content being viewed by others

References

  1. Essen, L., and Parry, J. V. L., Nature, 177, 744 (1956).

    Article  ADS  Google Scholar 

  2. Clemence, G. M., Nature, 176, 1230 (1955).

    Article  ADS  Google Scholar 

  3. Pérard, A., Nature, 177, 850 (1956).

    Article  ADS  Google Scholar 

  4. Jones, H. Spencer, Nature, 176, 669 (1955).

    Article  ADS  Google Scholar 

  5. Kaye and Laby, “Tables of Physical and Chemical Constants”, 4 (11th edit., 1956).

    Google Scholar 

  6. Markowitz, W., Astro. J., 59, 69 (1954).

    Article  ADS  Google Scholar 

  7. Markowitz, W., U.S. Signal Corps Symposium, Asbury Park, February 1956.

  8. Bullard, E. C., Nature, 176, 282 (1955).

    Article  ADS  Google Scholar 

  9. Essen, L., and Parry, J. V. L., Nature, 176, 280 (1955).

    Article  ADS  Google Scholar 

  10. Clemence, G. M., Science, 123, 567 (1956).

    Article  CAS  ADS  Google Scholar 

  11. Essen, L., Wireless Engineer, 32, 312 (1955).

    Google Scholar 

  12. Essen, L., Wireless Engineer, 33 (July 1956).

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

ESSEN, L. Atomic Time and the Definition of the Second. Nature 178, 34–35 (1956). https://doi.org/10.1038/178034a0

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1038/178034a0

This article is cited by

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing