On Display

Klein bottle, 1995.

A single surface glass vessel made by Alan Bennett in Bedford, 1995. It consists of three columns of three Klein bottles interconnected, which when cut form three pairs of single-twist Mobuis strips, one of each pair being seperate, the other of each

Brass sector by George Adams, 1756-1760.

Nine inch brass sector, by Adams; engraved "Improv'd and made by Geo. Adams, Mathm. Inst. Maker to His Royal Highness, George Prince of Wales, London", in fishskin case. Sectors were used in calculations involving proportion. They contain logarithmic

Carpenter's slide rule, 1825-1860.

Carpenter's 2-foot folding rule in boxwood with logarithmic slide, made by James Rabone & Sons, Birmingham, mid to late 19th century. This is a standard carpenter's rule of the period and includes scales for calculating the volume of wood and the p

French sector, 1751-1774.

Brass French sector by Canivet, Paris, 1751-1774. French sectors are less complicated than English sectors. They are also used for calculations involving proportions of length, area and volume.The lines radiate from the centre of the hinge.

Set of mathematical instruments by George Adams, mid 18th century.

Set of mathematical drawing instruments by G.Adams, in Sheraton case, oak and mahogany, mid 18th century. The case contains a sector, parallel ruler, pair of callipers, rectangular protractor, curve drawing instrument and compasses and dividers.

Six inch brass gunners callipers, c 1770.

Gunners callipers, 6 inch by H.Gregory, brass 18th century. These callipers ere used for measuring the diameter of cannon balls, or by crossing the arms, the bore of a cannon..

Navigation slide rule, c 1800.

A 2 foot boxwood slide rule for navigators, c.1800. 'Sliding Gunters' , or navigator's rules with a slide are comparatively rare, as most navigators preferred to stick with the ordinary 'Gunter' scale based on the combination of trigonometric, logari

'Little Professor' electronic calculator, 1980.

Little Professor' calculator, children's working educational toy / game, 1980. Electronic calculators were now low cost available items which could be targetted at children and those with straightforward requirements. This example was exhibited in th

'Magic Brain' calculator, c 1960.

Magic Brain' calculator made by Chadwick in tin and plastic, with stylus and instructions. C.1955. Very similar to the Exaxctus and other stylus calculators of the period, the Magic Brain could add, subtact, and multiply and duivide by repeated addit

Model depicting face-centred cubic packing, 1975.

Model to show face-centre cubic packing made of ping-pong balls.1975. This model imitates a stuctural form found in crystals.