Special article: Theory of General relativity

  General relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics. The general relativity showed the connection between the space and time or space-time. It is now the basis of understanding the universal law of gravitation proposed by Sir Isaac...

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Consequences of revolution of the Moon

There are two main consequences of the revolution of the Moon. The Moon revolves around the Earth is an elliptical path. Thus it is near(perigee) and far(apogee) from the Earth in every month. Due to this, there are two effects Tides Eclipses Tides: Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of the Earth. Most...

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Moon

The Moon is the Earth's natural satellite, orbiting around it every 27 days. It is also the fifth largest satellite in the Solar System. The Moon is only a quarter of the size of the Earth or it may be said that it is slightly bigger than the U.S.A. Its mass is 1/81 times of the Earth's. The moon is a cold, dry orb whose surface is studded with craters and strewn with rocks and dust (called regolith). The moon has no atmosphere. Recent...

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Earth

  The Earth is the third planet from the Sun, in our Solar System. Its is the only planet where life is known. Its third among the terrestrial planets and also the biggest. Its referred to as the World. Up, form above the atmosphere, the Earth looks blue in colour. Its because of the large amounts of water in it. The Earth, though a rocky planet, is mostly filled with water, i.e 70%(approx.) and the land cover only about 30% of the area of...

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Venus

Venus Venus is the second planet from the Sun. It is a fiery, hot planet which has mostly Carbon Dioxide. The size of the planet is nearly equal to that of Earth's, so its called as Earth's twin though its physically different from Earth except that it is rocky. Venus, since is covered by a Carbon Dioxide atmosphere, forms a thick cloud or a blanket over its surface and this atmosphere actually reflects 75%(approx.) of the...

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