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 argon 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.
Build your own windmill generator kit by recycling a plastic bottle!
Defy gravity with this cool balancing eagle!
Watch this laser pointer emit a cool purple beam!
This project book and sample kit introduces you to shape-memory alloy technology!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Working model representing the sun, earth, and moon and their relationships.