satellites

Satellites - Celestial bodies revolving around a planet are called satellites. Moon is a natural satellite of the planet Earth. These days, the term satellite is used for manmade satellites, which revolve around the Earth. The closed path of a ..

Celestial bodies revolving around a planet are called satellites. Moon is a natural satellite of the planet Earth. These days, the term satellite is used for manmade satellites, which revolve around the Earth. The closed path of a satellite around t..

The moon is a natural satellite of the Earth. We now have a number of artificial satellites (man-made) revolving around the Eart..

To launch an artificial satellite in space, multi-stage rockets are used. It raises the satellite to a predetermined height, projects it in the right direction with a velocity which enables it to revolve around the Earth. This velocity is called the escape velocity. Escape velo..

Communication satellites are normally geostationary satellites. They have devices called transponder which receive signals from an earth station and transmit them in different directions. The signals in the form of electromagnetic radiation are transmitted from the earth station..

Communication satellites are normally geostationary satellites. They have devices called transponder which receive signals from an earth station and transmit them in different directions. The signals in the form of electromagnetic radiation are transmitted from the earth s..

Weather Satellites - Scientists who investigate weather phenomenon are called meteorologists. To study a particular feature, may require an observation from a larger area. By combining great number of observations and analysing them by computers it is possible to get information about a l..

It is mainly done through geostationary satellites. These satellites are fitted with special devices. These devices can receive signals from an Earth station and transmit them again in different directions. These special devices are called transponder..

It is mainly done through geostationary satellites. These satellites are fitted with special devices. These devices can receive signals from an Earth station and transmit them again in different directions. These special devices are called transponders. A TV transmitter on an Ea..