Double Concave Glass Lens, 50mm Diameter, 300-1000mm Focal Length Range Included_Rod & Base & Clamps this demonstration electroscope detects and

this demonstration electroscope detects and visually quantifies the magnitude of static charges

Available in 13mm

Used to bridge a 4mm-socket instrument to a bare-component test point on the bench

demonstrating Bernoulli's principle quantitatively

Polished hardwood test tube rack with a traditional two-tier design

Double Concave Glass Lens, 50mm Diameter, 300-1000mm Focal Length Range Included_Rod & Base & Clamps this demonstration electroscope detects andRange rated 50mm double concave glass lens spanning 300 1000mm focal lengths, ground polished edges and optically worked surfaces giving long bench divergence flexibility in refraction work.