US$ 150.00
uniform heat conduction through the walls
one AC output
sized for stringing through small pulley systems or hanging pendulum bobs across multiple demonstration setups
5A standard rheostat with oxidized constantan winding on a vitreous-enameled steel tube
110 ohms at 1-ohm resolution
Plano-Cylindrical Lens, +10 Diopter State_Solid uniform heat conduction through thePairs a 50 by 50mm plano cylindrical glass lens with +10 diopter optical power, focusing light along a single axis for astigmatism correction, line focus, and cylindrical optics demos.
US$ 150.00
US$ 136.50
US$ 249.50