Thames & Kosmos 623913 Features: -Build a working wind turbine to harness power out of thin air. -Use the wind turbine to generate mechanical power and generate electricity to light up an LED. -Learn how to measure and calculate the different forces acting on the rotor blades by breaking them down into vectors. -Discover how the sun makes the wind, providing us with an endless source of energy. -Read about different types of wind turbines and windmills. -Harness mechanical energy to lift weights. -Full-color. -32-page experiment manual offers illustrated instructions and scientific information. -Ages 8 and up. -Assembly required. -Guide book dimensions: 5.5″ W x 8.25″ D.
Amazon Price: $31.59 (as of August 23, 2017 1:44 pm –