Physics
NASA engineer’s ‘helical engine’ may violate the laws of physics
A NASA engineer has published plans for an engine that could accelerate a rocket without using propellant. But there are questions over whether it could work
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A NASA engineer has published plans for an engine that could accelerate a rocket without using propellant. But there are questions over whether it could work
New Scientist was opposed to the Apollo missions from the start, and complained for decades that the money to send people into space was being wasted. Why were we so grumpy and pessimistic about putting a man on the moon?