“Why does my stomach hurt?” sounds like a simple question, but medically it is one of the broadest questions a person can ask. What we casually call the stomach is often the entire abdomen, an area stretching from below the chest toward the...
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On a clear Arctic night, the sky can begin almost imperceptibly. A pale band appears above the horizon, faint enough to be mistaken for a cloud. Then it brightens. The band folds into curtai...
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Open a familiar rectangular world map and something strange happens to the planet. Greenland appears enormous, sometimes looking almost comparable to Africa. Russia stretches across the top...
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Step out of a dark cinema into brilliant afternoon sunlight and, for some people, the reaction is immediate. The eyes narrow, the nose begins to tingle and within seconds comes an involuntar...
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Seal a cat inside a box with a radioactive atom, a radiation detector and a mechanism capable of releasing poison. Arrange the experiment so that, after an hour, the atom has a 50 percent ch...
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Draw a line from Miami to Bermuda, another from Bermuda to Puerto Rico, and a third back toward Florida, and you have the rough outline of one of the most famous imaginary places on Earth. T...
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Few foods carry a national story as neatly as Pizza Margherita. Red tomato, white mozzarella and green basil seem to reproduce the Italian flag on a circle of dough. According to the story r...
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Few animal sounds are as instantly recognizable as a cat’s purr. A hand reaches toward a warm patch of fur, the cat closes its eyes, and a low vibration begins somewhere inside its body. To...
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When George Herbert, the 5th Earl of Carnarvon, died in Cairo on April 5, 1923, the timing was almost too perfect for a sensational story. Only months earlier he had stood with archaeologist...
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Imagine exchanging messages with an unseen stranger. The replies are witty, coherent and sensitive to context. The stranger remembers what you said earlier, catches a joke, explains a diffic...
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