Semicircular Glass Block, 100 x 18mm Subcategory_Bases and Rods this green LED on a

this green LED on a demonstration base with 4mm plug connections lights up when current flows in the correct direction

Dial-gauge expansion apparatus with three interchangeable metal rods for heating and measuring the small length change each metal undergoes

with 4mm socket termination for direct connection to a standard laboratory low-voltage supply

Stand-mounted joule meter with a rotating disc and digital kWh readout rated for 240V 13A

providing an inert electrode that lets students isolate electrolyte and ion behavior from electrode chemistry

Semicircular Glass Block, 100 x 18mm Subcategory_Bases and Rods this green LED on aGlass semicircular block at 100 by 18mm, the wider half disc face extending the available beam entry zone for refraction and total internal reflection investigations.