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Showing posts with the label Astronomy

Electromagnetic Spectrum and its types!

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    Electric Charges         We live in a place of visible and invisible rays of radiation. These radiations are originated from sources that possess an  electromagnetic field. An electromagnetic field is a combination of both electric and magnetic fields. Every particle has a charge which makes it to have an electric field around it. This electric field is produced from charged particles like protons and electrons. This electric field surrounds the charged particle as long as the particle possesses the charge. The magnetic field is produced when the charged particles are in motion , such that all the charged particle points in the same direction and constitute the magnetic field. A moving charged particle also creates an electric field in combination with the magnetic field, thus producing together as an electromagnetic field. This process can be simply demonstrated by passing electricity through a conductor. When passing electricity, the electrons ...

Seasons of Earth (Solstice and Equinox)

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        Our Earth is the only known planet to sustain life in the solar system; as it is present in the habitable zone around the sun. Our Earth is gravitationally bonded to the sun which makes us revolve around our star continuously. Our earth revolves around the sun (one complete round) over a period of one year. Over this period our earth encounters various situations; among which one of the main situations is seasons.   Spring Summer      Autumn Winter           Our earth mainly encounters four seasons, namely summer, winter, spring, and autumn. These seasons are commonly called as temperate seasons. Even though there are four seasons, some locations particularly near the equatorial regions experience different seasons as the rainy season, on behalf of winter. Before knowing about each of these seasons, let’s know how these seasons occur at the first step. We know that our earth is tilted at 23.4 degrees....

Principle behind Solar and Lunar Eclipses!

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       Eclipses are one of the cosmological events that occur due to the celestial bodies. An eclipse is one, in which the light from one celestial body is blocked partially or fully by another celestial body, to the observer. The eclipses are mainly caused by the moons of the planets . A planet with more moons has more eclipses. On Earth, the eclipse occurs rarely because the earth has only one moon. So on earth, it is observed as a rare cosmological event. Now let’s look at the types of eclipses and how does it occur on earth. Difference between a solar and lunar eclipse     Generally, the moon, which is causing all the eclipses, can make it in two different forms, namely Solar Eclipse Lunar eclipse        Both types of eclipses are caused by the shadow effect. A Solar Eclipse occurs, when the moon passes between the sun and the earth. Here the moon’s shadow is made to fall on the earth thereby blocking the light from the sun. W...