1950s era comic depicting the general expectation for space travel -- a space age which never came to pass because of deadly space radiation and other problems that have not yet been overcome
Montag, 24. März 2014
17 September 2013 Trajectory to the moon
In getting from the ground to space the boosting rocket must provide the energy for lifting the mass, overcoming gravity and air resistance and getting up to orbital speed. It's a big job that takes a big rocket. Apollo's rocket was one of the biggest, the Saturn V:
It's a biggy: the Saturn V
Initially the weight of the rocket is very large comprising mainly of the weight of the fuel and oxygen necessary to power it. It must also over come gravity and air resistance which are also significant in the early stages.