This is a glass tube filled with neon gas and is similar to a section of an ordinary neon sign. When held and pointed at the dome of a Van de Graaf generator, the current will light the tube a bright orange. Neon is used, as it is the easiest gas to excite into emitting light. There is a large voltage drop across the tube, so the person holding it will not feel anything. A striking display, especially in a darkened room. The end of the tube is fitted with a foam rubber handle.
Build over 60 projects with this deluxe version of the Snap Rover kit!
This caffeine molecule mug makes an excellent gift!
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
This black scorpion specimen is great for the classroom setting!
Build a model car that runs on hydrogen gas using a unique reversible fuel cell!
This great rock tumbling kit comes with everything you need to polish stones and gems!