On Display
Ready reckoner, boxwood weighted with brass, for gross and tare weights of ship's cargoes, engraved "Robert Ludgate, Custom House, London, 1807". Tare is the weight of the packaging or container. Scales are given for finding the gross weight if the
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
A single surface model made by Alan Bennett in Bedford, 1995. It consists of a Klein bottle cut to form two interlinked three-twist Mobius strips. A Klein bottle is a surface which has no edges, no outside or inside and cannot be properly constructed
A single surface model made by Alan Bennett in Bedford, 1995. It consists of a parallel sided coil with one piercing of the return tube which when theoretically cut gives a pair of 15-twist Mobius strips. A Klein bottle has no edges, no outside or in
Calculating Rule 'Parker's Prestometer Tablet', c.1860 by Isaac Aston, London. One side of the rule is inscribed with multiplication tables involving halves.the other side has more complicated scales involving areas and volumes.
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
A single surface glass vessel made by Alan Bennett in Bedford, 1995. It consists of a five-layered sphere with added access routes which when cut produces a pair of single-twist Mobius strips. A Klein bottle is a surface which has no edges, no outsid
A single surface glass vessel made by Alan Bennett in Bedford, 1995. It consists of three Klein bottles arranged in a column which when cut form a pair of five-twist Mobius strips. A Klein bottle is a surface which has no edges, no outside or inside
A single surface model made by Alan Bennett in Bedford, 1995. It consists of a parallel sided coil with loops piercing the return tube which when theoretically cut gives a pair of 13-twist Mobius strips. A Klein bottle has no edges, no outside or ins
Hyperboloid of one sheet with its asymptotic cone; the tangent plane to the cone is also drawn.This is one of a large set of ruled surface models made by Fabre de Lagrange of Paris in 1872, following designs introduced in the early 19th century. They
