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Essay Travel Space

Rockets And Space Travel Essay

Flying into orbit, at times, seems just an ordinary event. We have been launching objects into orbit for several decades now. Over time, it seems that the knowledge of the first attempt to send an object into the atmosphere was lost. One lone American was very absorbed into the science of this very thing. He had an obsession about him. John
Goddard spent endless hours trying to perfect a small rocket launch. Though it sounds simple, lighting a fire underneath a small projectile, and make go in a straight line toward the heavens, is very detailed orientated.

In a book written by Arthur C. Clark, he talks about early work that was done in the world of rocketry, but at the time it was only for entertainment. It happened hundreds of years ago. One of the first experiences with rockets came from “thirteenth century Chinese” (Clarke 71). Today, the technology is so advanced; flights of hundreds of miles are not uncommon.

In the beginning of rocket experimentation, there were many trial and errors. They would fire up the engine of a projectile in hopes of a spectacular launch into the atmosphere. Many times it would only result in some kind of explosion. Catastrophe, if anything, is the nature of launching any projectile.

Mans attempt to send objects toward the clouds has sparked interests in going further than ever before. The moon and the outer planets of our solar system have now become an obsession with not only the science community, but with a lot of ordinary folks as well.

In order to satisfy this obsession, ways had to be found in order to get to these distant objects. The world we live on is small compared to the surrounding planets and universe but it is large compared to the complexities of ways to leave its attracting body. Gravity is the attraction that needs to be to be addressed in order to leave this world. Like the orbits of our neighboring planets and satellites, man needed to find ways to reach the outer boundaries of earth.

What does it take to send an object into orbit anyway? Early experiments from the Germans showed that the resistance of the atmosphere against the projectile slows the velocity of an object down. “A good example of this is the Me.163. In vacuum, where its motor could still operate, though of course the control surfaces would be useless, this machine would attain a speed of 2,700 miles per hour when it had burnt all its fuel. In
actual practice, once it has reached about 600 miles per hour all the remaining fuel is used to overcome drag” (Clarke 72). Though the Germans were not intending to send this object into orbit, it did show that more work was required in order to get there.

In order to get an object into a low earth orbit, scientists used gravitational laws that Isaac Newton had established years earlier. Escaping gravity can be an interesting task. Clark explains further in his book “The rocket can, however reach regions where “g” is very small, and it can attain velocities which,...

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We have entered the era of space travel. Men who will first land on the moon are already among us. Time is not far off when we will travel to other planets as we travel now to other countries. Gagarin, Titov, Sheppard, and others have already proved that it is possible to cross the limit of the gravity of the earth and travel anywhere in space.

In order to escape the gravitational pull of the earth, a speed of at least seven miles per second is necessary. This speed is possible only by means of a rocket. It is an aero-plane that flies up speedier than a bullet.

It has to be fired in a fixed direction like a gun. When it escapes the gravitational pull of the earth, another rocket comes out of the first rocket and continues the journey upward to any destination without any friction because there is nothing, not even air, to slow down its speed.

Space travel raises many problems. The first is the problem of refueling and supplies. This will be accomplished by means of a floating platform round the earth on which supplies of all kinds will be stored and this will be used for landing and repairing purposes. This inter­planetary station will be the first stage. We may need many such inter­planetary stations if we attempt long voyages to distant stars like the Mars.

Another problem is that of weightlessness. Once we escape the gravity of the earth we will cease to have any weight. We will be able to walk on the roof or walls like an ant. In that case we will need magnet in our shoes to keep us tied to the iron floors. All our tables, chairs, etc., will have to be nailed or they will start flying like a magician's work.

Food is the third problem. It will not be possible for us to eat or drink anything in the usual way. Since there will be no gravity, it will not be possible to push the food down our throats by the common method of putting it into our mouth. Food will have to be taken in tubes such as we use for toothpaste purposes. It will have to be put in the mouth and pulled down into the stomach by practice.

Atmosphere will be the fourth problem. We will have to carry air in sealed bottles, because there is no air above in space and we cannot live without air. Both air and water will have to be carried along with other necessaries of life.

Those who first land on the moon will not find it that interesting place which it appears to be on a moonlit night. It may be a dry, deserted and dead world where nothing grows. Men who go there will enjoy the earthlight as we enjoy the moonlight here.

The problem of space travel will be overcome in stages. Space travel offers much romantic possibility. Science has brought many wonders and if man succeeds in space travel on a large scale, it will open the mysteries of other planets.

America's Saturn rockets, Gemini's and Surveyors, and Russia's Sputniks, Cosmoses, etc. are taking mankind nearer the conquest of moon. It is now a matter of a couple of years of waiting to see the glorious day. The research is already nearing completion.


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