Formula One race cars are borrowing a concept used in hybrid vehicles, capturing energy from braking. Magneti Marelli's Formula One Kinetic Energy Recovery System stores energy created during braking and applies it to provide extra power on demand. Some drivers feel it can improve speed by as much as much as 0.4 sec per lap. Magneti Marelli is using Murata Electronics' capacitors to store this energy. The EVC series' ceramic capacitors are small enough to squeeze in anywhere, measuring only 32 × 40 × 3.7 mm — helping reduce weight, which can impact balance and performance depending on the mass distribution inside the car.
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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