The Different Kinds of Artifical
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There is no need to dwell on the blessings of artifical light for they are obvious. If we had to depend entirely on the light of the sun, half the work the world does today could be done.
Probably the earliest form of artificial light was the fire, lit for warmth and cooking purpoises the was the fire must have been originally simply a burning stick taken out of the fire it was perfected when it discovered that it would burn longer and more brightly when dipped in oil or fat.
The use opf dat on the torch may have suggested the rush light which consisted simply of a rush stem, or some tow floating in a vessel of oil liquid fat. The indian chiragh is on just the same principle. Both the torch and rush light wew very imperfect the one giving off thoick clouds of smoke and the other producing only a very dimlight. A great improvement on the rush light was the candle a wick of cotton enclosed in a pillar of hard and soildified fat but the final development of the rush light is the lamp burning a mineral oil such as kerosene and often giving a hundred candle power light.
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My name is vanshi kant
My father name is mr. manish kant 
My mother name is mrs Reean
I read in class 10th
I am 17 yrear old
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Vanshi
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