Page 51 - @ccess 2 Reader´s Book
P. 51
In 1903, a Russian teacher named Konstantin Tsiolkovsky
wrote a paper describing the idea of liquid-fuel rockets.
In 1926, American scientist Robert Goddard flew the first
liquid-fuel rocket. German scientists led by Hermann Oberth
improved liquid-fuel rockets.
During World War II, Germany used rockets to bomb other
countries. In 1957, the Soviet Union used a rocket to launch
the first satellite. In 1961, Soviet cosmonaut Yuri Gagarin
rode in a rocket to become the first person in space.
In 1969, the United States launched the first men to land
on the Moon - Neil Armstrong and Buzz Aldrin - using a
Saturn V rocket.
50 Reader's Book
