Browse Items (3400 total)

Demonstration originated by James Ferguson to illustrate that the sum of compound motions at right angles produce a diagonal displacement. Wooden frame sliding element holding with brass ball on rod that slides up rod as frame is moved sideways. Disk…

Set of six 'Peter-Pan' gas mantles in cardboard tubes with brass-coloured lids; written on tubes, 'Registered N. 409807', 'Made in Italy'; The mantle is made from oxides that, when heated, glow brightly in the visible spectrum.

Small bulb with a frosted window; a "sapphire" window, in a cardboard box.

500 W light bulb 240 volt, coiled filament stretched in 4 V segments. Type 375C. Bayonet fitting.

lens for University Television camera. Zoom 10x18J. 1/4 x. Glass lens with plastic surround. In red and cream cardboard box. Located with TV camera.

lens for University Television camera. Zoom 10x18J. 1/4 x. Glass lens with plastic surround. In red and cream cardboard box. Located with TV camera.

Coil 500 turns; attached paper label of more recent origin '. L 155 mH R 73.07 Ohms ' Wooden frame with brass handle and slots for engorging vertically or horizontally.

a Post Office Telecommunications modem unit type 2TG2393 ser No.47284, case serial No. 18783 with Type 740 telephone; for transmission at 600 and 1200 baud;

Mount of transit telescope from north pillar of Cromwell Observatory, King's College - shell of telescope also present. See item no.ABDNP:200009a by Thomas Jones .

Ostrich egg, carved with symbols and a monogram in memory of the death of James VIII and III. The lettering of the inscription is recognisably Scottish as is the drawing of the symbols, but the other work, especially the stylised flowering trees,…