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door.knocker
Old Scottish door latch and knocker, Thomson's Catalogue (Small General Catalogue of Banchory House Museum 1862): 'from Mrs Macvicar'.
Dotchins. Small wooden boxes shaped like guitars with long necks, containing quills marked with scales from which metal dishes are suspended with string.
4 different sets of balances. Chinese balances in bamboo carrying cases known as Dotchins. They were used in the Chinese market place for weighing gold currency that consisted of irregular pieces stamped with their purity; violin-shaped wooden case…
Double windmills. Two sets of four brass vanes on an axel with a leaf spring connected to it, on a brass and wooden stand. The vanes are facing the direction of rotation on one set and are twisted away from it on the other set.
Demonstration of air resistance. Double windmill each with 4 vanes : first set vanes fixed perpendicular to direction of motion; second set of vanes can be rotated individually around axis of support arm to give range of resistance from…
Dr James Fraser
3/4 portrait of James Fraser, seated and facing right, with head towards viewer. Long grey periwig, wearing brown coat, white cravat, floppy lace cuffs and a tan waistcoat. Left hand holds book on table with spine up on a green drape background.…
Dr. Lorimer's dipping compass. An octagonal wooden box from out of which projects four intersecting brass rings perpendicular to each other and incised with degree scales. Suspended in the innermost ring, which is oriented upright, is a needle which can rotate freely inside the ring.
Instrument for showing that a compass needle not only points to magnetic north but if freely suspended will point into the ground. This later phenomenon is known as the 'dip' of the compass needle. Horizontal scale 0 -90 in 1/20 on either side of N…
Dracula. A paperback copy of the novel Dracula by Bram Stoker, with an illustration of a vampire surrounded by purple smoke on the cover.
Novel 'Dracula' by Bram (Abraham) Stoker. First published 1897, this edition Puffin Classics 1986.