Compatible Timer for Digital Lab Timer (LBTM) Lab Supplies_Stirring Bars & Rods Snap-together polypropylene test tube rack

Snap-together polypropylene test tube rack holding 40 tubes up to 20 mm across a 9

4-inch thickness on a polished right-angled acrylic refraction prism

this Van de Graaff generator delivers spark-producing high-voltage demonstrations in the physics classroom

sized for visible-time-scale RC charging and capacitor-driven momentary lamp-flash experiments

Compatible Timer for Digital Lab Timer (LBTM) Lab Supplies_Stirring Bars & Rods Snap-together polypropylene test tube rackFourteen millimeter LED display on this precision digital timer, driven by a 10 MHz quartz oscillator across four operating modes and bundled with two photogates for physics timing experiments.