My family stayed in a hotel in Simla. My sister and I were in a separate room. When we were about to go to sleep someone knocked our door. My sister got up to open the...
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Who Invented the Alarm Clock? The Greeks invented a prototype of the alarm clock around 250 B.C. They also built a water clock where the rising waters would both keep...
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Yes, fish sleep. Because fish have no eyelids, they cannot close their eyes, and it may look as though they never sleep. Many of them sleep by simply remaining very...
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Why Do Bats Hang Upside Down? Bats look very odd, with their mouse-like bodies and their huge wings. They look odd when they sleep, too, because they hang upside down,...
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Why Do Dogs Turn in Circles Before They Lie Down? When dogs turn around in circles before lying down, they do it out of an instinctive habit of making beds for...
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