Why Is Our Galaxy Shaped like a Spiral?
A galaxy is a huge number of stars grouped together. Our galaxy contains about 1,00,000 million stars. It looks like a disc with a flat center and spiral arms. From the...
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How Does a Magnifying Glass Work?
How Does a Magnifying Glass Work? A magnifying glass makes the words and letters on a page look much larger because of the way in which it bend the rays of light that...
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