Crookes Maltese cros tube (left) and radiometer (right), 1879-1888.
2 9 c m
40cm
actual image size: 32cm x 21cm

Crookes Maltese cros tube (left) and radiometer (right), 1879-1888.

© Science Museum / Science & Society Picture Library

Description

Sir William Crookes (1832- 1919), an experimental chemist and physicist, discovered a new element in 1861 which he called thallium. Whilst weighing samples he noticed that there were inconsistencies which led him to devise the light-mill or radiometer in 1875. The Maltese cros tube is still used to demonstrate properties of cathode rays (rays which cause minerals such as ruby to phosphoresce emit light without combustion or perceptible heat).
 

Image Ref.

10262650
 

buy a print

Select size
 
Select finish
 
How many prints?
 
£20.00
 

buy a framed print

buy a canvas

buy a framed canvas