1. The Revolution of Inventions
However, builders needed to understand those two opposing forces which are called gravity and thrust if they wanted to prevent the vaults from collapsing. ... Later on, a national goal of "landing a man on the moon and returning him safely to Earth within a decade" was set by President John F. ... On July 20, 1969, Astronaut Neil Armstrong was the first man to walk onto the moon. ...
- Word Count: 1176
- Approx Pages: 5
- Has Bibliography
- Grade Level: Undergraduate