When Iñupiat hunters and biologists began finding ancient weapon fragments inside bowhead whales harvested in Arctic Alaska, the discoveries posed an extraordinary question: how long had these animals been swimming with pieces of an earlier...
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In the old medina of Fez, behind carved doors and walls that have witnessed more than a millennium of Moroccan history, books have survived dynasties, wars, political upheavals and the arriv...
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From the ground, Earth is almost too large to understand. Nations fill maps. Mountain ranges divide regions. Oceans separate continents. Political borders seem concrete because they organize...
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Listen to some of NASA's most famous recordings from the outer Solar System and space does not sound silent at all. Jupiter whistles, crackles and roars. Saturn produces eerie rising tones....
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Suppose engineers invent a computer chip that performs the same calculation using half as much electricity. The obvious conclusion is that electricity consumption should fall. Now suppose th...
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Ice presents a small everyday mystery. A cold pavement can be dangerously slippery even when the air temperature is far below freezing, while many other crystalline solids are perfectly easy...
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There is a place in the South Pacific where the horizon contains nothing but water and the nearest scraps of land are roughly 2,688 kilometers away. No island marks the spot. There is no lig...
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An old tree can carry the shape of an injury long after the branch that caused it has disappeared. A swollen collar may surround the site of a lost limb. Growth rings can bend around the old...
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Look down at a computer keyboard and you are looking at a museum whose exhibits still work. Some keys preserve decisions made by nineteenth-century typewriter manufacturers. Others carry sym...
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Why AI Doesn’t Really Understand the World (But Reconstructs It) When people talk to ChatGPT, Claude, or any AI assistant, they often say: “It understands everything.” The truth is mo...
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