1926年3月16日,美国火箭研制的先驱者、科学家罗伯特·戈达德制造的世界上第一枚液体火箭升空。汽车、轮船、飞机的发动机简单来说都是利用转动产生能量来驱动车轮,获得动能。而飞上太空则需要利用完全不同的原理获得。就像把吹满气体的气球放开,气球就被喷出的气体推得满屋乱飞一样,飞向太空的火箭也是利用气体产生的推力获得第一宇宙速度甚至第二宇宙速度脱离地球的束缚。最早发明火箭的中国,就是运用 On March 16, 1926, the world’s first liquid rocket was launched by scientist Robert Goddard, a pioneer of rocket development. Cars, ships, aircraft engines simply use the rotation to generate energy to drive the wheels, access to kinetic energy. While flying into space you need to use a completely different principle. Just like a balloon full of gas is released, the balloon is pushed out of the room to push out the same room full of lurking smoke. The rocket flying into space also uses the thrust generated by the gas to obtain the first cosmic velocity and even the second cosmic velocity off the earth Bound. The first rocket invented China, is to use