Hard Drive Platter Tesla Turbine
If you have one more dead hard drive left after building the top five dead hard drive projects give the Hard Drive Platter Tesla Turbine a try. There is more information about the build at Instructables. “In the Tesla Turbine, air, steam, oil, or any other fluid is injected at the edge of a series of smooth parallel disks. The fluid spirals inwards and is exhausted through ventilation ports near