Even as turbofan engines become quieter thanks to larger, slower-turning fans, the fan remains a source of noise that is difficult overcome. Now researchers in Germany have shown that fan noise can be ...
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Bladeless Tesla turbine turns static into power, and it sounds impossible
A century after Nikola Tesla sketched a turbine with no blades, researchers are now using that same counterintuitive design to pull useful power out of static electricity. The latest experiments pair ...
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