Browse Items (3471 total)

glass specific gravity hydrometer, black lead weighted, scale 1400 to 1600. In cardboard tube

Red painted wooden disk, part of whirling body demonstration using whirling stand (that we don't have). Small metal hook at top with attached string

a cast iron circular base with a vertical hollow rod terminating with horizontal screwed thumbnut in brass. Telescopic stand

glass specific gravity hydrometer, lead shot weighted encapsulated in red, scale 1600 to 1800. In cardboard tube

glass dome with glass knob top

a heavy G clamp with an attached belt drive mechanism which rotates a wood and brass rod. Leather drive belt. Canvas hood on end of brass rod

Larger spirit level for transit telescope. One end has adjustable screw feet.

tall cylindrical glass laboratory jar with neck and base.

a mercury glass centigrade thermometer, scale -5 to 105 deg C. In cardboard tube

Small collection of original off-prints mentioned in "The Atlas computer in the 1960s and early 1970s: a personal reminiscence".