First picture of a positron track, taken by Carl Anderson, 1932.

Gamma rays from thorium C11, c 1937.

Decay of a Z particle into an electron and

Photographs of tracks made by ionised particles in a cloud chamber, c 1920s.

J J Thomson's cathode ray tube, 1897.

Photographic close-up of the Sun, 10 May 1878.

Apparatus used by JJ Thomson to discover the electron, 1897.

Charles Thomson Rees Wilson, Scottish physicist, c 1920s.

J J Thomson with his son and daughter, c 1909.

J J Thomson with his son and daughter, c 1909.

Joseph John Thomson, English physicist, c 1900.

J J Thomson with his son, George, c 1909.