Spectrum discharge tubes contain gases that, when ignited, emit different waves of light (or the gas’s spectral lines). This is how scientists are able to determine the gaseous make-up of planets in our solar system. This oxygen spectrum discharge tube is approximately 10.25 inches long with electrodes sealed at both ends that are connected to lead wires protected by metal caps. It needs an induction coil spark of approximately 5cm or a suitable power supply for use. Recommended for use by adults only, this is excellent for use in classroom demonstrations or college-level science projects.
The Star-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, writers, students, and you!
See the constellations visible in the Northern Hemisphere on this watch!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
This simple but amusing magnetic toy will keep you busy for hours!
This glass Erlenmeyer mug makes an excellent gift!
An ancient toy featuring optical illusion and hands-on fun that never grows old!