The Saturn V Moon Rocket
Everybody at some time in their life has thrown an object into the air, and it always comes back down. If you throw it really hard it can go up a fair way, but gravity, although a fairly weak force is nevertheless quite hard to defeat if you want an object to leave the earth and not come back. The boundary between earth's atmosphere and space is called the Karman line and its 100 km straight up or around 330,000 ft above sea level. You can not use a normal engine to get into space, as the higher you get, the thinner the atmosphere and eventually no oxygen to support combustion, if you want to leave earth you need a rocket as these carry the fuel they need plus the oxygen to burn it. The Saturn V was 111 meters or 363 feet tall, about the same as a 36 story building and 18 meters taller than the Statue of Liberty, fully fueled it weighed 2.8 million kg. By comparison a fully loaded Boeing 747 is 1/10th of the weight while the even bigger Airbus A-380 has a maximum take off weig