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How Does the Steam Engine Work?
In 1804 the first steam-powered engine ran, carrying some iron in Wales, in Britain. But it was almost twenty five years later, in 1829, that George Stephenson, a British engineer, designed the “rocket” that paved the way for railways all over Europe, Asia and America. How Does the Steam Engine Work? [Illustration by Shiju George] The steam engine is an example of a heat engine. Heat engines are those that convert heat energy into mechanical work....
Who stole the Candle Wax?
On every Diwali, known as the festival of lights, our family has a big discussion on the kind of lighting we should have. And after talking about candles or electric bulbs we invariably choose the _diya_s or earthen lamps for their beautiful flames. But last year, we reached the kumhara or potter’s roadside shop a bit too late. The lamps had been sold out and the potter had a big smile on his face. So we decided to light candles....
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