Aston's quartz microbalance, c. 1919

Made:
1914-1924 in Cambridge
maker:
Francis William Aston

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group
© The Board of Trustees of the Science Museum

Original quartz microbalance, presented by the Council of Trinity College, Cambridge

F W Aston (1877-1945) was an English chemical physicist who devised a way to separate atoms of similar mass and measure these masses accurately. He showed clearly that over fifty elements consisted of atoms of similar but different atomic mass, but the same atomic number. These are known as isotopes.

Details

Category:
Nuclear Physics
Object Number:
1928-179
Materials:
glass (case) and quartz (balance)
type:
quartz microbalances
credit:
Aston, F.W.