Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Contribution of Albert Einstein in the modern science
History communications satellites
Essay on albert einstein and his contributions to science
Don’t take our word for it - see why 10 million students trust us with their essay needs.
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
Often times its hard to imagine how the world survived without cell phones. Its an automatic response, when you see a car accident you take out your cell phone and dial for help, or when a child is waiting for a ride they will call their parents to see how far away they are. It is a great convenience for society to be able to do such things. Imagine if you didn't even have to call somebody to find out where they were. It may seem like a futuristic idea, humanity being capable of such mind reading; however, the advancement of GPS, global positioning systems, those ideas are coming to life in the present. GPS is a way to track one's position at anytime. This is done through the use of satellites monitored by stations on the ground. There are signals transmitted from a given satellite to the receiver on Earth. It is this information that gives precise location to one's whereabouts.
Due to compression, TV audio and video require less bandwidth and multiple digital TV channels can fit unto one satellite transponder as oppose to a single analogue channel occupying the whole transmission line.
Although many people could say that it would just be a waste of time because of the other military development failures, the national budget is shrinking. In the late 1990s, the U.S. government started work on a new type of spy satellite. The project cost U.S. taxpayers billions of dollars, but none of the satellites were built. The reason for t...
...ecessary safety measures in order to protect ourselves from things like identity theft. Effective telephone communication is crucial because of the possible dangers that occur while using the devices. Before using any type of technology to communicate with others, be sure you know the main issues relating to it and how to prevent these issues from happening to you. Look into the technology’s ratings and feedback before investing in it; by doing so, there is a greater chance that you will be happier with the outcome of your decision on whether or not to purchase it.
It was originally assumed that the SDI program was a virtually perfect defense against a large intercontinental ballistic missile, or ICBM, attacks, which required very competent weapons. An ICBM has three levels of flight; the boost phase, the midcourse phase, and the terminal phase. With the SDI program, a space-based directed energy, or a laser, weapon would be used to destroy ICBM’s in the boost phase. Ground-based, space-based lasers or continental weapons could be used to destroy ICBM’s in midcourse, and ground-based beam weapons and missile interceptors could be used to destroy ICBM’s in the terminal phase. But as the goals of the program have evolved toward more realistic ambitions, the requirements for highly competent weapons diminished. Therefore, the initial focus on space-based directed energy weapons gradually shifted toward interest in ground-based kinetic energy weapons.
NSSS states a few current trends in space as being “congested and contested” (NSSS, 8), which is shaping our space strategic environment as well as fueling debates for space weapons. “Congested” trend refers to the current “60 nations and government consortia that own and operate satellites and the expectation to have 9000 satellite communication transponders in orbit by 2015.
Shalal, Andrea. “Analysis Points to China's Work On New Anti-Satellite Weapon.” Reuter's Website. March 17, 2014. Accessed May 16, 2014. http://www.reuters.com/article/2014/03/17/us-china-space-report-idUSBREA2G1Q320140317.
In 1957 the Soviets used a missile to launch a satellite, Sputnik 1, into orbit around the earth. The arms race then became a space race as the United States rushed to launch its own satellites, some for military
Jorden, William J. "Soviet Fires Earth Satellite Into Space?" New York Times, October 5, 1957. [URL] Accessed May 22, 2003.
Sixty-Five million years ago, 70 percent of life on Earth died. The most reasonable and possible reason this happened was an asteroid. An asteroid hit the Earth very hard, and in doing this, dirt and dust from the impact stayed in the air and it blocked out sunlight, that’s why the dinosaurs died. An asteroid is a rock from outer space. Asteroids have orbited the Sun along with the planets since the solar system formed about 4.6 billion years ago, but it’s only been 200 years since we first discovered them. Meteorites are small pieces of asteroids broken off on impact with other asteroids. Most meteorites are rusty brown on the outside, have rounded edges from melting as they go through Earth’s atmosphere, and contain iron. There are 3 different types of meteorites: stony, metallic, and stony metallic.92 percents of all asteroids are stone, 6 percent are made of iron and nickel, and the rest are a combination. Some meteorites also contain gold, copper, platinum, and carbon.
Global service coverage is in large demand, especially from businessmen who frequently travel. Linda Stern suggests in Newsweek to global travelers that they should “buy your phone and service from T-Mobile, AT&T or Cingular, the only three U.S. companies to use the internationally dominant GSM (Global System for Mobile communication).” Depending on the service provider, one may or may not get coverage in other countries. For example, Verizon customers enjoy phones that work in Latin America, while Cingular customers have coverage in Europe. Even better is AT&T Wireless, which offers “vast international coverage” or TMobile, another international carrier (Stern). Service coverage varies greatly by carrier, with some reaching many countries and others only small portions of a single country.
GPS is a system of satellites radio-transmitters that orbit the planet in great numbers; their purpose is to be able to pinpoint the exact location of an individual or any type of vessel that is equipped with a receiver transmitter within a very small radius. GPS navigation has had a great impact upon society in general as well and its commercial and military applications. Global Positioning is made available at no cost to anyone who has a GPS receiver unit anywhere on the planet. A GPS unit is able to give the user longitude/latitude information as well as, altitude, traveling speed, distance traveled, distance remaining and time in any type of weather conditions imaginable.
One thing us as humans have never been able to fully understand is astronomy. Always having an unexplained mystery, astronomy also has served as a way to keep time and predict the future. The word “astronomy” is defined as the study of heavenly bodies, meaning anything in the sky such as stars, galaxies, comets, planets, nebulae, and so on. Many people, if not everyone, is amazed by the night sky on a clear, moonless night.
Today a lot of countries use satellites for different purposes and naturally when these satellites end of life, they create space pollution. Some people think that it is too dangerous for our world and they use what Garcia says. According to Garcia “More than 500.000 pieces of debris are tracked as they are orbiting the Earth. They all travel at a speed of 17.500 mph, fast enough for a relatively small piece of orbital debris to damage a satellite or spacecraft. The rising population of space debris increases the potential danger to all space vehicles, but especially to the International Space Station, space shuttles and other spacecrafts with humans aboard”(Garcia, 2015, para. 1).