Abstract
THE widespread researches on the phenomena in electrical discharge tubes, which form so important a feature of modern physics, directed much attention to the question of obtaining high vacua. In 1888, as Lenard tells us,1 an efficient vacuum pump was by no means an essential part of the equipment of a physical laboratory: at the present time it emphatically is so. In the following a brief account will be given of the modern forms of the different types of pumps, especial reference being made, however, to a pump recently invented by Dr. Gaede, as it depends on a principle never before applied, and seems from present information more efficient than any of its predecessors.
Article PDF
Rights and permissions
About this article
Cite this article
ANDRADE, E. Modern Pumps for High Vacua . Nature 90, 574–575 (1913). https://doi.org/10.1038/090574a0
Issue Date:
DOI: https://doi.org/10.1038/090574a0