Browse Items (3400 total)

Early electrical carbon arc lamp. Missing glass chamber, only fragment remains

Equipment for the Rayleigh scattering experiment. Small light bulb, diffuser (frosted glass), 2 lenses, cubical glass container (for liquids?) and a white screen housed in a wooden frame. On base there is a plastic plate object name on it. Complete…

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

Metal casing with large light bulb inside and circular window with movable metal cover. Power cable still attached.

tin cylindrical float terminating in a cone hat has a ring for attaching additional weight. A rod protrudes from the top, terminating in a circular tray. Possibly an early hydrometer

Brass disc with wooden disc screwed to one side with wooden rod attached; pieces of copper leaf attached to end of rod

Piece of thick fibre optical cable with sheath and casing (not visible to naked eye). Light enters one end and exits out the other having been reflected within the cable

Patchboard 1.5 mm pins with translucent yellow casings. Contained in small plastic bag.

2 large cupboard with 22 drawers in each. Inside there is an assortment of lenses, lens holders, foils, mirrors and crystals.

marked as crystal samples