DARPA LiquidPiston mini X: engine having the size of a smartphone and does not need oil or pistons.
It has made this idea that seemed a dream, as they have succeeded in manufacturing an engine of just 1.8 kilograms with dimensions of a 5-inch smartphone, but where the most attractive of all is the fact that you do not need pistons or oil for operation. Under a development Nikolai Shkolnik, Russian mechanical engineer, and his son Alexander Shkolnik, computer engineer, have managed to solve many of the prob
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