The first computer is thought to be the invention of a 19th century mathematician What Is an Aurora? (03:13) National Treasure: The Fearsome Science Behind the T. rex, the King of the Dinosaurs ...
Since the 1980s, the average life expectancy of a person with Down’s syndrome has more than doubled, from less than 30 to well into their 60s. Living longer, though, has revealed a tragic twist ...
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