Ernest Rutherford and Hans Geiger, nuclear physicists, 1912.

Sir Ernest Rutherford and Hans Geiger, physicists, 1912.

Philips LaserVision laser disc, 1980s.

'Spring on Wimbledon Common', London Underground poster, 1935.

Starburst LCD Analogue watch by Texas Instruments, 1978.

Alpha-ray tracks, early 20th century.

Long range alpha-particle, early 20th century.

Tracks of alpha particles.

Analogue music synthesizer, 1970.

Analogue music synthesizer, 1970.

Copper 37% zinc alloy. The alpha solution

Pauling and Corey with their alpha helix model, c 1950s.