Asked in Inventions
When was the first water rocket invented?
November 11, 2007 1:53AM
There is quite a lot of information available in the US patent records. See this article at Water-rockets.com that references several patents, one dating back to 1898, that are related to water rocketry.
Asked in NASA, Wernher Von Braun
How did Dr Wernher von Braun further America's space programs?