KidWind simpleGEN, easy-to-build AC generator that allows students to explore the basics of electrical generator design, Recommended for College, High School, and Middle School Science
Spectrum Discharge Tube, Mercury Gas to show spectral lines of pure substances. Tubes approximately 260mm long, central capillary portion approximately 3-1/2 to 4 (90-100mm) long with electrodes sealed at both ends and connected to lead wires protected by metal caps