Water bath, Doubled walled, 6 Places Lab Supplies_Jar Pivoted needle-style electroscope that swings

Pivoted needle-style electroscope that swings on its axis when a charge is applied

doubling as a lab-demo lens for focusing sunlight and investigating image formation with convex optics

Lightweight and shatterproof in acrylic

Wooden-frame abacus with three U-shaped steel wires carrying 20 plastic beads each on a 13 by 6 inch base

Three-neck multiple adapter in borosilicate glass features 19/26 socket for multi-component chemistry apparatus assembly and distillation setups

Water bath, Doubled walled, 6 Places Lab Supplies_Jar Pivoted needle-style electroscope that swings6 Place double walled, electric, automatic temperature control. Operates on 220 240 Volts AC. 6 Place double walled, electric, automatic temperature control. Inside chamber size 355 x 250 x 110 mm made of stainless steel and outer of mild steel sheet. Outer and the inner wall is insulated with special grade glass wool. Top of the bath and the concentric rings are of stainless steel. Temperature controlled by a thermostatfrom Room temperature to 100???