Rectangular Refraction Cell, Material: acrylic rectangular, Color: clear, excellent for showing refraction and internal reflection in water, and to measure its refractive index, has uniform wall thickness to eliminate distortions, Dimension: 6X3X6.2 CM
KidWind High Torque Generator with Wires, High Torque Generator produces lower voltage but higher current for a given rotor speed, Recommended for College and High School
KidWind Sound and Light Board, simple power output board that comes standard with the MINI Wind Turbine, great way to demonstrate power output from small electrical devices, needs at least 2 V to start working