A new determination of the free-space velocity of electromagnetic waves

Author:

Abstract

The paper describes the determination of the free-space phase velocity of electromagnetic waves in vacuo by means of a millimetre-wave interferometer capable of high precision. As already provisionally announced (Froome 1958) the result is: c o =299792.50±0.10 km/s, where the variation represents the standard deviation of a single determination in statistical combination with estimated systematic errors.

Publisher

The Royal Society

Subject

Pharmacology (medical)

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