Browse Items (47 total)
- Collection: Copland Teaching Apparatus
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Pencil sketch of old Marischal College. A large rectangular building with four floors. It has a stone archway containing big wooden doors, large rectangular windows and blocks of chimneys. Adjoining the building is a rectangular tower with seven floors which has a round turret running up the side.
Pencil sketch attached to paper backing paper with title 'Front view of Old Marischal College, by Alexander Stuart, early 19th century.
Proportional compasses. A pair of long brass rectangles with numbers inscribed up their length, each with a long steel point at one end a short point at the other. They are screwed together with an ornate knob.
Brass with steel points, wooden box, signed ' C. Lunan '.
Spark or flicker tube. A glass tube with bulbous brass ends and a spiral of silver metal dots running along the inside.
Glass tube with brass ends; with ball terminals; inside tube is spiral of small metal discs each seperated by gap of less than 1 mm; when tube is placed across an electrostatic generator, a spiral discharge is seen around inside of tube caused by…
Standard foot. A brass ruler, a foot long, inscribed 'J. Sisson London'.
Included in Observatory equipment of 1823 Marischal College Natural Philosophy Inventory (King's Archives). Value: one guinea', ' Standard foot Examined by Maskelyne ' on paper in Copland's hand sellotaped onto lid. Inscribed 'J Sisson London'.
Suction pump. A glass tube with a small brass fitting covering the top and a larger one on the bottom. Hinged on to the bottom fitting is a brass plunger with the end wrapped in fabric, operated with a lever. A small pipe also projects from the bottom fitting.
Wooden box containing demonstration suction pump in two parts; glass barrel illustrates operation of two valves, one at base of barrel and one in piston; instrument sits on velvet cloth and there seem to be space for other instrument. Matches item in…
Table compass. A compass, eleven centimetres wide, in an octagonal wooden frame with a glass cover bordered by brass. The compass needle sits above a disc of paper printed with an anthropomorphic sun in the centre and directions and degrees around the edge.
Octagonal plane table compass. Paper card marked with compass points and in quadrantal degrees brass scale marked 0 - 360. Octagonal mahogany frame with key flap for table. Paper label underneath 'The property of the University of Aberdeen'. Embedded…