Satellite

Satellite is an object which has been placed into orbit by human endeavor. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as the Moon. Space is the property of the universe, in which matter is physically extended and objects have positions relative to one another.In classical mechanics, space was treated as being separate from time and is thought of as one of the few fundamental physical quantities. In Isaac Newton's view space was absolute, and held that it exists permanently and independently of whether there is any matter in the space or moving through it.Space exploration is the use of astronomy and space technology to explore outer space. Physical exploration of space is conducted both by human spaceflights and by robotic spacecraft. Space exploration has often been used as a proxy competition for geopolitical rivalries such as the Cold War. The first human spaceflight was Vostok 1 (East 1), carrying 27 year old cosmonaut Yuri Gagarin on April 12, 1961. The spacecraft completed one orbit around the globe, lasting about 1 hour and 48 minutes. Gagarin's flight resonated around the world; it was a demonstration of the advanced Soviet space program and it opened an entirely new era in space exploration — human spaceflight.Space Shuttle Discovery (Orbiter Vehicle Designation: OV-103) is one of the three currently operational orbiters in the Space Shuttle fleet of NASA, the space agency of the United States. (The other two are Atlantis and Endeavour.) When first flown in 1984, Discovery became the third operational orbiter, and is now the oldest orbiter in service. Discovery has performed both research and International Space Station (ISS) assembly missions.Space technology is technology that is related to entering space, maintaining and using systems during spaceflight and returning people and things from space.Space technology has a huge impact on the everyday lives of people; and something as simple as checking the weather or watching satellite television or receiving a parcel guided by satellite, it touches most people's lives on any given day.

Space Technology in Modern World

Space science is the study of everything above and beyond the surface of the Earth, from Earth's atmosphere to the very edges of the universe. Space Technology refers to the technology in satellites and ground systems used by space scientists to study the universe (looking up) and the earth (looking down), or to deliver services to users on the ground. The vast majority of satellites are launched into space to provide services to people on Earth.

The Benefits of Space Technology to the Modern World

Space Technology brings lots of benefits to our modern world. Since the era of the space age, space technology technology or scientific breakthroughs has brought more benefits to our everyday lives then the space technology which has benefited our world.Perhaps the most important benefits come directly, as all the satellites that orbit our world benefit us directly. This is important, as all of the telecommunication network backbone of the world is dependent on the satellites that are circling our world. Even the main backbone of the Internet is carried with satellites now and without satellites our cellular phones, satellite phones, or faxes would become useless very soon. Also with the Broadcast satellites that are encircling our world, you are able to watch thousands of TV stations. In addition, you are able to watch any impending news event Live wherever it takes place in our world. Also with the GPS satellites around our world, we can pinpoint our location with only a loss of 10 cm. As an added bonus, weather satellites allow us to direct our lives as we are no longer in the dark about major meteorological events like hurricanes or cyclones.

Space Technology in Modern World

Space science is the study of everything above and beyond the surface of the Earth, from Earth's atmosphere to the very edges of the universe. Space Technology refers to the technology in satellites and ground systems used by space scientists to study the universe (looking up) and the earth (looking down), or to deliver services to users on the ground. The vast majority of satellites are launched into space to provide services to people on Earth. Satellite is an object which has been placed into orbit by human endeavor. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as the Moon. Space is the property of the universe, in which matter is physically extended and objects have positions relative to one another.In classical mechanics, space was treated as being separate from time and is thought of as one of the few fundamental physical quantities. In Isaac Newton's view space was absolute, and held that it exists permanently and independently of whether there is any matter in the space or moving through it.Space exploration is the use of astronomy and space technology to explore outer space. Physical exploration of space is conducted both by human spaceflights and by robotic spacecraft. Space exploration has often been used as a proxy competition for geopolitical rivalries such as the Cold War. The first human spaceflight was Vostok 1 (East 1), carrying 27 year old cosmonaut Yuri Gagarin on April 12, 1961. The spacecraft completed one orbit around the globe, lasting about 1 hour and 48 minutes. Gagarin's flight resonated around the world; it was a demonstration of the advanced Soviet space program and it opened an entirely new era in space exploration — human spaceflight.Space Shuttle Discovery (Orbiter Vehicle Designation: OV-103) is one of the three currently operational orbiters in the Space Shuttle fleet of NASA, the space agency of the United States. (The other two are Atlantis and Endeavour.) When first flown in 1984, Discovery became the third operational orbiter, and is now the oldest orbiter in service. Discovery has performed both research and International Space Station (ISS) assembly missions.Space technology is technology that is related to entering space, maintaining and using systems during spaceflight and returning people and things from space.Space technology has a huge impact on the everyday lives of people; and something as simple as checking the weather or watching satellite television or receiving a parcel guided by satellite, it touches most people's lives on

About Modern Technology

Do you think modern technology has made life easier and safer? Or do you think that modern technology has made life more difficult and more dangerous?
Technology today has made life easier and quicker but dangerous. As we look at technologies, questions are risen. By the way what are technologies? Modern technology is machinery that makes life easier. For example, microwave ovens cook food easily without using stoves and making a big mess. And dishwashers put all dirty dishes into the dishwasher and it washes them. Dishwashers are very easy to use and save time comparing it in the old fashion way. Today modern technology also has created problems because they are dangerous.
How is technology dangerous? The answer to this question is very simple. There's lots of incident where there is malfunction in technology. For example, if there is a problem with a car than the car won't be able to run, or if there is a technical mistake in a train computer system than the train would probably dysfunction and this could lead to a crash. Many people dislike the production of technology. Technology also creates financial problems in families because most technologies are very expensive to buy like the computers, televisions, refrigerators

Energy and Transport

Meanwhile, humans were learning to harness other forms of energy. The earliest known use of wind power is the sailboat.^{[citation needed]} The earliest record of a ship under sail is shown on an Egyptian pot dating back to 3200 BC.^{[citation needed]} From prehistoric times, Egyptians probably used "the power of the Nile" annual floods to irrigate their lands, gradually learning to regulate much of it through purposely-built irrigation channels and 'catch' basins. Similarly, the early peoples of Mesopotamia, the Sumerians, learned to use the Tigris and Euphrates rivers for much the same purposes. But more extensive use of wind and water (and even human) power required another invention.

According to archaeologists, the wheel was invented around 4000 B.C. The wheel was probably independently invented in Mesopotamia (in present-day Iraq) as well. Estimates on when this may have occurred range from 5500 to 3000 B.C., with most experts putting it closer to 4000 B.C. The oldest artifacts with drawings that depict wheeled carts date from about 3000 B.C.; however, the wheel may have been in use for millennia before these drawings were made. There is also evidence from the same period of time that wheels were used for the production of pottery. (Note that the original potter's wheel was probably not a wheel, but rather an irregularly shaped slab of flat wood with a small hollowed or pierced area near the center and mounted on a peg driven into the earth. It would have been rotated by repeated tugs by the potter or his assistant.) More recently, the oldest-known wooden wheel in the world was found in the Ljubljana marshes of Slovenia.

The invention of the wheel revolutionized activities as disparate as transportation, war, and the production of pottery (for which it may have been first used). It didn't take long to discover that wheeled wagons could be used to carry heavy loads and fast (rotary) potters' wheels enabled early mass production of pottery. But it was the use of the wheel as a transformer of energy (through water wheels, windmills, and even treadmills) that revolutionized the application of nonhuman power sources.

Metal tools

Continuing improvements led to the furnace and bellows and provided the ability to smelt and forge native metals (naturally occurring in relatively pure form). Gold, copper, silver, and lead, were such early metals. The advantages of copper tools over stone, bone, and wooden tools were quickly apparent to early humans, and native copper was probably used from near the beginning of Neolithic times (about 8000 BC). Native copper does not naturally occur in large amounts, but copper ores are quite common and some of them produce metal easily when burned in wood or charcoal fires. Eventually, the working of metals led to the discovery of alloys such as bronze and brass (about 4000 BC). The first uses of iron alloys such as steel dates to around 1400 BC.