By Luis Rodriguez
Robert H. Goddard
Robert Goddard was the designer of the first successful liquid-fuel rocket. In 1923, he started to design rockets powered by liquid oxygen. His first successful rocket flight was made in 1926 when a 4-foot rocket flew for 2 seconds and reached an altitude of 40 feet. In 1931, Goddard introduced the automatic launch sequential system and, in 1932, gyroscopic steering.
Water rockets (game)
Round up friends or family, then get as many 2 liter empty bottles and one stopwatch, After that grab a hose, then put the bottle over the hose, then tell someone to turn it on, finally when you feel a lot of pressure let the bottle go. See whose water rocket takes the most time to hit the ground. They will be the winner.