Little Johnny wanted to go to the zoo and pestered his parents for days. Finally his mother talked his reluctant father into taking him.
"So how was it?" his mother asked when they returned home.
"Great," Little Johnny replied.
"Did you and your father have a good time?" asked his mother.
"Yeah, Daddy especially liked it," exclaimed Little Johnny excitedly, especially when one of the animals came home at 30 to 1!"
Konstantin Eduardovich TsiolkovskyDied 19 Sep 1935 at age 78 (born 17 Sep 1857). Russian pioneer space theorist who, while a provincial Russian schoolteacher, worked out many of the principles of space travel. In 1883, he noted that a vehicle in space would travel in the opposite direction to gas that it emitted, and was the first to seriously propose this method propulsion in space travel. He wrote various papers, including the 1903 article “Exploration of Space with Reactive Devices.” The engineering equations he derived included parameters such as specific impulse, thrust coefficient and area ratio. He established that the most efficient chemical combination would be that of liquid hydrogen and liquid oxygen. He was later recognized by the Soviet Union as the “father of cosmonautics.” He also built the first wind tunnel.« |
