• Home   /  
  • Archive by category "1"

Satellite Essay

Satellites orbit the earth. Through electronic eyes from hundreds of miles overhead, the satellites lead prospectors to mineral deposits invisible on earth’s surface. Relaying communications at the speed of light, they shrink the planet until its most distant people are only a split second apart.

They beam world weather to our living room TV and guide ships through storms. Swooping low over areas of possible hostility, spies in the sky maintain surveillance that helps keep peace in a volatile world.

How many objects, exactly, are orbiting out there? Today’s count is 4,914. The satellites begin with a launch, which in the U.S. takes place at Cape Canaveral in Florida, NASA’s Wallops Flight Center in Virginia, or, for polar orbiters, Vandenberg Air Force Base in California. A few simply vanish into the immensity of space.

When a satellite emerges from the rocket’s protective shroud, radioelement regularly reports on its health to round-the-clock crews of ground controllers. They watch over the temperatures and voltages of the craft’s electronic nervous system and other vital ‘organs’, always critical with machines whose sunward side may be 300 degrees hotter than the shaded part.

Once a satellite achieves orbit-that delicate condition in which the pull of earth’s gravity is matched by the outward fling of the crafts speed-subtle pressures make it go astray Solar flares make the satellite go out of orbit. Wisps of outer atmosphere drag its speed. Like strands of spider web, gravity fields of the earth, moon, and sun tug at the orbiting space farer.

Even the sunshine’s soft caress exerts a gentle nudge. Should a satellite begin to wander, ground crews fire small fuel jets that steer it back on course. This is done sparingly, for exhaustion of these gases ends a craft’s useful career. Under such stresses, many satellites last 2 years.

When death is only a second away, controllers may command the craft to jump into a high orbit, so it will move up away from earth, keeping orbital paths from becoming too cluttered. Others become ensnarled in the gravity web; slowly they are drawn into gravitational shat serve as space graveyards.

A satellite for communications would function like a great antenna tower, hundreds or even thousands of miles above the earth, capable of transmitting messages almost instantaneously across die oceans and continents. Soon after the launch of ATWS-6, (a satellite designed to aid people) NASA ground controllers trained its antenna on Appalachia.

Satellites

  • Length: 983 words (2.8 double-spaced pages)
  • Rating: Excellent
Open Document

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - More ↓
Satellites


Satellite is probably the most useful invention since the wheel. Satellites
have the capability to let you talk with someone across the nation or let you
close a business deal through video communication. Almost everything today is
heading towards the use of satellites, such as telephones. At&t has used this
communications satellite (top right) ever since the late 1950s. TVS and radios
are also turning to the use of satellites. RCA and Sony have released satellite
dishes for Radio and Television services. New technology also allows the
military to use satellites as a weapon. The new ION cannon is a satellite that
can shoot a particle beam anywhere on earth and create an earthquake. They can
also use it's capability for imaging enhancement, which allows you to zoom in on
someone's nose hairs all the way from space.
     Robert Gossard (left) was one of the most integral inventors of the
satellite. He was born on October 5, 1882. He earned his Masters and Doctoral
degree in Physics at Clark University. He conducted research on improving solid-
propellant rockets. He is known best for firing the world's first successful
liquid-propellant rocket on March 16, 1926. This was a simple pressure-fed
rocket that burned gasoline and liquid oxygen. It traveled only 56m (184 ft) but
proved to the world that the principle was valid. Gossard Died August 10, 1945.
Gossard did not work alone, he was also in partnership with a Russian theorist
named Konstantin Tsiolkovsky. Tsiolkovsky was born on September 7, 1857. As a
child Tsiolkovsky educated himself and rose to become a High School teacher of
mathematics in the small town of Kaluga, 145km (90mi) south of Moscow. In his
early years Tsiolkovsky caught scarlet fever and became 80% deaf. Together, the
theoretical work of Russian Konstantin Tsiolkovsky and the experimental work of
American Robert Gossard, confirmed that a satellite might be launched by means
of a rocket.


     I chose the satellite to research because many things such as computers,
TVS and telephones are using satellites, and I thought it would be a good idea
to figure out how they work and the history behind them before we start to use
them more rapidly. I also picked the satellite because I think that my life
would differ without it. For instance, The Internet or World Wide Web would run
very slowly or would cease to exist altogether. We wouldn't be able to talk to
people across the world because telephone wires would have to travel across the
Atlantic, and if they did, the reception would be horrible. We wouldn't know

How to Cite this Page

MLA Citation:
"Satellites." 123HelpMe.com. 13 Mar 2018
    <http://www.123HelpMe.com/view.asp?id=84809>.

LengthColor Rating 
History of Earth Obersvation Satellites Essays - ... Actually, since 1982 , NOAA satellites has helped in saving more than 6500 lives as a minimum estimate as per united state civil defense statistics. 1.3 Applications 1.3.1 Oceanic and sea observation 1. EOS services used widely in disaster effects such as oil leakage. 2. Remote sensing color of water, River flows, lake sizes. 3. Coastal and river erosions. 4. Observing ice bergs and global warming effects. 5. Maritime ship detection and asset protections 1.3.2 Ground surface observation 1. EOS can give accurate information for forestry and agricultural management enquiries such as yield prediction, drought monitoring and field boundary managements, health and density and soil moisture....   [tags: surveillance, monitoring, wavelength]1328 words
(3.8 pages)
Better Essays[preview]
Communication Satellites Essay examples - Communication Satellites Have you ever thought about how that little phone in your hand works. What about how you always seem to have internet and cable access. A satellite is a device put into orbit around Earth that uses receivers, amplifiers, and transmitters to receive and send signals around the globe (“Communications Satellite Aug. 2007”). Satellites provide the signals to these and more devices. Satellites orbit Earth and provide global communications, as well as collect valuable data. Many countries and companies currently compete for the valuable orbits for satellites....   [tags: transatlantic cables, global communication]
:: 5 Works Cited
1017 words
(2.9 pages)
Strong Essays[preview]
Satellites Essay - Satellites       A satellite is defined as an object that orbits or revolves around another object.  In basic terms, this relationship is due to the gravitational pull of the larger object while the smaller one has enough velocity and momentum to circle the larger one (Fitzgerald &Dennis).  This is a good definition if one is only speaking of the broad principles of why and how objects attract one another and where in nature this occurs.  The billions of stars and planets together make up a vast network of orbiting objects that each can rightfully  be called satellites.  By studying the way the Universe and Solar System works, scientists have been able to send man made devices into earth'...   [tags: Technology Essays]
:: 4 Works Cited
1158 words
(3.3 pages)
Strong Essays[preview]
Satellites Essay example - Satellites Satellite is probably the most useful invention since the wheel. Satellites have the capability to let you talk with someone across the nation or let you close a business deal through video communication. Almost everything today is heading towards the use of satellites, such as telephones. At&t has used this communications satellite (top right) ever since the late 1950s. TVS and radios are also turning to the use of satellites. RCA and Sony have released satellite dishes for Radio and Television services....   [tags: essays research papers]983 words
(2.8 pages)
Strong Essays[preview]
Satellites Essay example - Satellites orbit the earth doing our bidding in ways that enrich the lives of almost all of us. Through electronic eyes from hundreds of miles overhead, they lead prospectors to mineral deposits invisble on earth's surface. Relaying communications at the speed of light, they shrink the planet until its most distant people are only a split second apart. They beam world weather to our living room TV and guide ships through storms. Swooping low over areas of possible hostility, spies in the sky maintain a surveillance that helps keep peace in a volatile world....   [tags: essays research papers]478 words
(1.4 pages)
Strong Essays[preview]
Essay on The Benefits of Global Positioning Satellites - The Benefits of Global Positioning Satellites Navigation systems are becoming more and more popular in cars. In a world where society wants everything fast and easy, a system which allows you to program a location and quickly get directions is sure to be a success. Early versions of these navigating systems installed a computer hard drive into the car. These were rather expensive and also somewhat clumsy to operate. The new systems which are called Global Positioning Satellites run off of satellite dishes that the military monitors....   [tags: Expository Essays Research Papers]498 words
(1.4 pages)
Strong Essays[preview]
The Sputnik Satellite Essay - Works Cited Incomplete Sputnik: The Satellite That Inspired Generations Introduction In 1950, a group of American and European scientists decided to establish a worldwide program to promote research and understanding of the world around them. They decided that July 1957 to December 1958 would be called the International Geophysical Year, or IGY. They hoped that drawing attention to geophysical matters would stimulate new projects and inventions, and increase the knowledge the world had of the planet, its atmosphere, and the things that lay beyond....   [tags: Space Satellites]
:: 2 Works Cited
3967 words
(11.3 pages)
Better Essays[preview]
Low Earth Orbit Satellites Essay example - Low Earth Orbit Satellites " Mr Watson , come here I want you " screamed Alexander Graham Bell as he spilled some acid on himself and the first telephone message in the history of man was heard across the hall way , on March ,10 , 1876 .(4). Now more than a hundred years later people in different parts of the globe can communicate through cellular phones . And in less than 6 months people will be able to go anywhere in the world and carry one mobile phone with one phone number . They will be able to be reached in the middle of Los Angels or at the top of Mount Everest ....   [tags: Papers]1579 words
(4.5 pages)
Strong Essays[preview]
Satellite Communications Description Essay - What is a satellite. It is defined as “a natural body that revolves around a planet; a moon” or “a device designed to be launched into orbit around the earth, another planet, the sun, etc.”. For this purpose, the second definition is the one that will be focused on. Satellites are a fairly new technology, only about 60 years old. For it’s short usage, it has greatly impacted human society. The development of satellite communications technology has greatly impacted our day-to-day life and military operations....   [tags: echo 1, satellites, nasa, gps]
:: 20 Works Cited
1004 words
(2.9 pages)
Strong Essays[preview]
Satellite Surveillance Essay - Satellite Surveillance I. Preface My interest in satellite surveillance did not really appear to after I saw the movie "Enemy of the State" in 1998. The synopsis of the movie is: Robert Dean (Will Smith) is a labor lawyer who is unknowingly in possession of evidence related to a serious politically motivated crime. Government agents eager to hide their guilt believe that Dean is on to them, and proceed to turn his life upside-down, ruin his reputation, and frame him for various incidents, thanks to the latest in high-tech government surveillance techniques....   [tags: Satellites Weapons Technology Essays]
:: 13 Works Cited
3808 words
(10.9 pages)
Powerful Essays[preview]

Related Searches

Satellites         Scarlet Fever         Small Town         Capability         New Technology         Rocket         Rockets         Firing         1950s        




what the weather would be like on earth, or what the stars and planets are like
in space. We wouldn't be able to watch live television premiers across the
country because all those are via satellite.
     A satellite is a secondary object that revolves in a closed orbit around
a planet or the sun, but an artificial satellite is used to revolve around the
earth for scientific research, earth applications, or Military Reconnaissance.
All artificial satellites consist of certain features in common. They include
radar for altitude measurements, sensors such as optical devices in observation
satellites, receivers and transmitters in communication satellites, and stable
radio-signal sources in navigation satellites. Solar cells generate power from
the sun , and storage batteries are used for the periods when the satellite is
blocked from the sun by the Earth. These batteries in turn are recharged by the
solar cells. The Russians launched Sputnik 1 (left) on October 4, 1957, as the
first satellite ever to be in space. The United States followed by launching
Explorer 1 on January 31, 1958. In the years that followed, more than 3,500
satellites were launched by the end of 1986. A science physicist said that "If
you added up all the radio waved sent and received by satellites, it wouldn't
equal the energy of a snowflake hitting the ground.
Satellites were built and tested on the ground. They were then placed into a
rocket and launched into space, where they were released and placed into orbit.
The rocket would then become space junk, and the owner of the satellite would
lose a tremendous amount of money. Now that NASA has created a space shuttle,
several satellites can be launched simultaneously from the shuttle and the
shuttle can then land for reuse and financial purposes. The space shuttles also
have the capability to retrieve a satellite from orbit and bring it down to
earth for repairs or destruction. Once the satellite is released from the space
shuttle, the antenna on the satellite will receive a signal from earth that will
activate it's rockets to move it into orbit. Once in orbit, The antenna will
receive another signal telling the satellite to erect it's solar panels (bottom).
Then the control center on earth will upload a program to the satellite telling
it to use it's censors to maintain a natural orbit with earth. The satellite
will then pick a target point on earth, and stay above that point for the
remainder of it' s life. Once a satellite shuts down, the program uploaded to
the satellite will tell it to fold up it's solar panels and remain in its orbit.
Several days after the shut down, a space shuttle will pick up the satellite for
repairs or replacement of new cells.
     As you can see, the satellite is a very complicated piece of technology,
but it's capabilities are endless. By the end of the year 2000, there will be an
estimated 7,000 satellites in orbit! That's a satellite per 36,000 people.
Satellites are becoming more and more useful as technology advances. Computers
are turning towards the Internet, telephones are turning towards video-
communication, and televisions are looking for better cable services. So as
long as satellites orbit the earth, you might as well take advantage of them now,
before it's too late.



One thought on “Satellite Essay

Leave a comment

L'indirizzo email non verrà pubblicato. I campi obbligatori sono contrassegnati *