MRA 1 tellurometer set, c 1960.

Millikan's apparatus for measuring the charge on the electron, c 1915.

Decay of a Z particle into an electron and

IBM Electronic Data Procesing Machine, 21 March 1957.

A collision between an electron and a positron, CERN, 1990s.

Apparatus used by Millikan to measure the charge on the electron, c 1915.

Electronic clarinet, 1999.

Harold and Lady Dorothy Macmillan, August 1962.

Maudslay's micrometer, 1805.

Avo Smethurst Exposure Meter, c 1930s.

Electronic clarinet, 1999.

Kendrew's original model of the myoglobin molecule, 1957.