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.
A Wind Turbine. The wind turbine uses wind to generate rotational power. It is low-torque, but high speed and only requires an open area. For maximum efficiency, 16 blocks of unobstructed space in front of it and an altitude of at least 128 blocks are required. Wind Turbine. The wind turbine uses wind to generate rotational power. It is low-torque, but high speed and only requires an open area. For maximum efficiency, 16 blocks of unobstructed space in front of it and an altitude of at least 128 blocks are required.