active man made satellites in orbit

To place a satellite into orbit it needs to be accelerated in several stages. The required acceleration is produced by firing rockets at various stages of flight. These rockets are fitted into a system called 'launch vehicle' which carries the satellite. By firing rock..

To place a satellite into orbit it needs to be accelerated in several stages. The required acceleration is produced by firing rockets at various stages of flight. These rockets are fitted into a system called 'launch vehicle' which carries the satellite..

can be defined as obtaining information about an object by observing it from a distance and without coming to actual contact with it. Infact when we see an object and understand what it is, our eye is sensing that object remotely. This is a broad definition. But we generally use this term for obse..

A satellite is a solid heavenly body that revolves round a planet. The moon revolves round the earth, so moon is a satellite of the earth. The inner planets have few moons. Earth has one, and Mars has two tiny satellites. Moon The giant outer planets, however, resemble..

. During a free fall, both travel downwards with the same acceleration, equal to the acceleration due to gravity. As a result, the astronaut does not exert any force on the sides or floor of the spaceship, and the sides and floor of the spaceship do not push the astronaut up. The astronaut therefor..

Conclusion - Unfolding the mysteries of the dark and silent space with no known boundaries has always been a dream of the human race. The desires of man has ultimately been accomplished through the exploration of space using various space launching vehicles, space probes and satellit..

Question: List the uses of solar cells. Answer: A Solar cells or solar cell panels are used in: 1) Artificial satellites and in space probes like Mars orbiters 2) Wireless transmission systems or TV relay stations in remote locations 3) Traffic signals, calculators an..

These are called second inner transition series. The elements in which the last electron enters one of the 5f-orbitals are called as actinides (or) 5f-block elements. They include the elements from actinium (Ac) to Lawrencium (Lr). All these elements are radioactive and the elements beyo..

Pollution is defined as an 'undesirable change in the physical, chemical or biological characteristics of air, water and land brought about by man's activities that may harmfully affect living organisms and other resources..

Biosphere Reserves - The concept of biosphere reserves has been evolved by UNESCO's Man and Biosphere Programme (MABP). A biosphere reserve is a specified area in which multiple use of the land is permitted by dividing it into zones, each for a particular activity..