Browse Items (3473 total)

glass dome with brass neck piece and screw hole, possible for suspending an apparatus inside or attaching a tube

Hand held brass microscope, part of a set of miniature optical instruments. Focal length of approx. 1.5" (38mm). Has a clamp so can be mounted to a stand.

three large bulbs with liquid mercury and alcohol are mounted vertically with brass latches against a wooden board and white card. No scale.

in wood, small trestle table or stool with crossed supports at each end, brass screws, possibly for equipment support

Voltage series resistor which alters the voltage range of a Unipivot galvanometer when connected to it. A black metal box with 2 plastic screw connectors (black and red) for wires, or for another resistor to connect to, and 2 metal plate connectors…

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…

one of a pair, circular base weighted with lead, the vertical tapers upward from a bulbous bottom, terminating with a wing nut for holding a telescopic inner section of glass rod

Fabric measuring tape in feet and inches; measures up to 66 feet

Brass pole with screw thread end and central bit on a spring which moves in when pressed.

a cone of tin painted black and decorated with gold motif, suspended by two pins let into two brass rods which are fixed to a circular brass base. The cone is free to swing and hangs naturally point downwards. Demonstration of points of gravity.