Saturday, April 13, 2013

History and Future of Space Exploration.

The History and Future of Space Exploration

Franklin Cantrell

Earth & Space Science

For centuries hu soldierykind has looked up at the sky in wonder. Primitive man drew pictures of stars on stones and walls. One of the first theories about the stars was that in that location was a giant dome covering the Earth, with thousands of holes punched in it, with a great fire on the other side of the dome. Later, near cultures believed that the stars and sun were gods watching over us. The universe has always been a source of questions, even sooner man knew what is now known. It is this inbred curiousness that drives us to push our technological limits, and explore the outlander called space. near critics say that space exploration is a funds hole, but if the facts are observed, one can see that roughly nothing but good can come from it.

The soonest rockets came from solid elicit fireworks. The earliest solid rocket fuel was a form of powder, and the earliest recorded mention of gunpowder comes from China late in the third century before Christ. Bamboo tubes filled with saltpeter, sulphur and charcoal were tossed into ceremonial fires during religious festivals in hopes the noise of the explosion would frighten evil spirits. Its probable that much than a few of these bamboo tubes were imperfectly sealed and, instead of bursting with an explosion, patently went shooting out of the fire, propelled by the rapidly burning gunpowder.

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Some clever observer whose name is lost to history whitethorn have then begun experiments to deliberately produce the same outlet as the bamboo tubes, which leaked fire. Rocket fire-arrows were used to repel Mongol invaders at the battle of Kai-fung-fu in 1232 A.D. The rockets were huge and apparently quite powerful. gibe to a report: When...

There are some fibres in this obligate that should be removed or double checked. The velcro reference in the last paragraph for example is false. NASA did not originate velcro as it was invented by a private engineer.

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