Flying Bedstead', 29 November 1957.

Harry Ferguson's first mounted plough, 1935.

Prototype Apollo Lunar Optical Rendezvous System (LORS), 1966.

First prototype of the 'Clock of the Long Now', 1999.

Flying bedstead test rig, 1954.

The Rolls-Royce vertical take-off-thrust measuring rig, 1954.

The Rolls-Royce vertical take-off-thrust measuring rig, 1954.

Ferranti Mark I computer, c 1951.

Prototype grid stereometer, 1948.

Canberra prototype MK PR9 WH793.

Descent Control Sub-System (DCs) of the Huygens probe, 1997.

Descent Control Sub-System (DCs) of the Huygens probe, 1997.