Sand glasses, 18th century.

Ultraviolet spectra of hydrogen and aluminium, late 19th-early 20th century.

Observing a solar eclipse, 1673.

'Star Gazer Planetarium', 2000.

Bottles taken from a pharmacy display, late 19th early 20th century.

Waving the finishing flag at a motor race, 1930s.

Auguste Momberger during a pit stop, German Grand Prix, Nurburgring, 1934.

Argus, 1909.

Camera obscura advertisement, c 1819.

Drawings of sunspots, 28 October 1642.

Eadweard Muybridge demonstrating animal motion, 1889.

Construction of Dove Holes Tunnel, Derbyshire, 1860-1865.