Sunday, September 20, 2020
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NASA engineer’s ‘helical engine’ may violate the laws of physics

By Jon Cartwright Rocket engines that don’t need propellant have been proposed before: this is an illustration of the EM-driveIllustration by luismmolina/iStock / Getty Images PlusFor every action, there is a reaction: that is the principle on which all space rockets operate, blasting propellant in one direction to travel in the other. But one NASA…

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