This page provides step by step instructions on building a Tesla turbine from two old computer hard disk drives using basic hand tools and a pillar drill. No metal lathe or other expensive fabrication machinery is...
Learn how to build a theremin in this free online video guide to electronic musical instruments, including the history of theremins, playing tips, and how to build your own. The theremin is one of the earliest fully...
Learn about the physics of resistance in a wire. Change its resistivity, length, and area to see how they affect the wire's resistance. The sizes of the symbols in the equation change along with the diagram of a...
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