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为了提高火箭在宇宙航行中的飞行速度,科学家一直在寻找新的能源。1953年,德国一位科学家提出了光子火箭的设想。光子,就是构成光的粒子。当它从火箭的尾
In order to increase the rocket’s speed in space flight, scientists are always looking for new energy sources. In 1953, a German scientist proposed the idea of a photon rocket. Photons are particles that make up light. When it comes from the tail of the rocket