The newest prototype from Active Power is its battery-free flywheel energy storage system that operates for 15 minutes at 80 kW. Slated to replace lead-acid batteries in a 3-phase Uninterruptible Power Supply (UPS), the device delivers double the energy of its predecessor. Active Power has already released its CleanSource dc product line (available between 100,000 and 500,000W) and its CleanSource UPS product line (available between 65 and 900 kVA, both utilizing flywheel technology. To find out more information, go to www.activepower.com.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
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