Episode Description from the Publisher
你知道吗，最早想靠火箭上天的人，是个叫万户的明朝人——他把自己绑在47支火箭上，想飞，结果当然没成。可正是这个"疯子"的念头，几百年后真被人类实现了。这期咱们从动量守恒这个物理底层逻辑讲起，看戈达德怎么造出第一枚液体火箭，看V-2怎么把火箭变成武器，再看土星五号怎么把人送上月球。重点聊今天的猎鹰火箭，它居然能自己飞回来重复用，还有马斯克的星舰，张口就是要送人去火星。从绑火箭的疯子，到可回收的火箭，人类的执念一点没变。一根棍子绑火药能上天，靠的到底是什么原理？当年万户被笑疯，今天星舰真要奔火星——你说这到底是疯子的执念，还是人类最浪漫的一场豪赌？
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