KidWind Wind Turbine Generator with Wire,Voltage output: 0-10 V, Amperage output: 0-0.3 A, Diameter: 1.25 in, Wire length: 4 ft, Shaft diameter: 2 mm, Recommended for College, High School, and Middle School Science
Quantum Minimaglev Kit, Experience Quantum Levitation with this portable, light weight and easy to use maglev track. The kit includes: Round Dia.15.7in maglev track Medium levitator (Dia.1.77in) Plastic tweezers