Porcupines' quills, or spines, take on various forms, depending on the species, but all are modified hairs coated with thick plates of keratin, and embedded in the skin musculature.
Produce up to 400-Watt of power for free in your own back yard. The wind turbine will produce more power up to 400-Watts at 28 mph. If the wind dies down the turbine will continue to produce power in winds as low as 5.6 mph. This wind generator is used to charge 12-Volt batteries and mounts on any 1.5 in. Schedule 40 pipe.
Generating Electricity from Wind Energy With Wind Turbines. A wind turbine is in many ways the opposite of a fan. Instead of providing the electricity to get the fan to rotate, wind rotates the turbine to generate electricity. So, how exactly does wind energy produce electricity? The rotor blades on a wind turbine catches the kinetic energy in the wind and transfers it via a rotor shaft to the generator. The wing blades can be rotated and adjusted to the wind direction and strength, for maximum utilization of energy. When the rotor spins, the power is transferred via the drive shaft and gearbox.