Vertical Axis Wind Turbine Science Kit, Kit Should Only Be Used By Persons 12 Years Old And Up, And Only Under The Supervision Of Adults Who Have Familiarized Themselves With The Safety Measures Described In The Kit, Keep Small Children And Animals Away
Wave Apparatus Demo - Metal, Consisting of a number of eccentric disc supporting a series of metal rods on revolving the handle. For demonstrating longitudinal and transverse motion.
Wind To Hydrogen Science Kit, Turn Wind Power Into Hydrogen Energy, Build Your Own Hydrogen Fuel Cell Powered Inventions, Revolutionary New Horizon Wind Turbine, Includes HorizonS Complete Curriculum On Renewable Energy On Cd, Demonstrate The Principles