早在 17 世纪初,德国天文 学家开普勒就提出,彗星的尾 巴之所以甩向远离太阳的方向, 是由于太阳光压力的作用。那 时他就曾大胆设想,借助太阳光 来驱动飞船,实现无需燃料的 宇宙航行。1900 年,俄国科学 家列别捷夫则用实验证明了光 确实将压力作用于物体上,而且 这压力值与麦克 As early as the early 17th century, German astronomer Kepler proposed that the tail of a comet shuffle away from the sun due to the effects of solar stress. At that time he had dared to imagine using the sun to drive the spacecraft for fuel-free cosmic voyage. In 1900, the Russian scientist Lebedev experimentally proved that the light does indeed exert pressure on the object, and this pressure value and Mike