Spectrum Tubes Deuterium, glass tubes approximately 10-1/4in (260mm) long, central capillary portion approximately 3-1/2in to 4in (90-100mm) long with electrodes sealed at both ends and connected to lead wires protected by metal caps.
Book, Renewable Energy with Vernier, Recommended for High School, features 26 experiments in wind and solar energy, contains a combination of explorations, traditional experiments, inquiry investigations, engineering projects