Paper, 'On electrical evaporation' by William Crookes

Description

Crookes writes: 'It is well known that when a vacuum tube is furnished with internal platinum electrodes, the adjacent glass, especially near the negative pole, speedily becomes blackened, owing to the deposition of metallic platinum. The passage of the induction current greatly stimulates the motion of the residual gaseous molecules; those condensed upon and in the immediate neighbourhood of the negative pole are shot away at an immense speed in almost straight lines, the speed varying with the degree of exhaustion and with the intensity of the induced current.'

Annotations in pencil and ink. Includes 12 diagrams of experimental observations.

Subject: Physics / Electricity

Received 4 June 1891. Read 11 June 1891.

A version of this paper was published in volume 50 of the Proceedings of the Royal Society as 'On electrical evaporation'.

Reference number

PP/18/5

Earliest possible date

1891

Physical description

Ink and graphite pencil on paper

Page extent

18 pages

Format

Printed
Diagram