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Pundits are weaponizing disgust to fuel violence, and it’s affecting our humanity

Science

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Einstein refused to believe in the inherent unpredictability of the world. Is the subatomic world insane, or just subtle?

Science

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Vastly extended life spans would bring dazzling opportunities — and daunting risks

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It is on this second, nontechnical level where the controversies lie. Two different theories are commonly proposed to explain lift, and advocates on both sides argue their viewpoints in articles, in books and online. The problem is that each of these two nontechnical theories is correct in itself. But neither produces a complete explanation of lift, one that provides a full accounting of all the basic forces, factors and physical conditions governing aerodynamic lift, with no issues left dangling, unexplained or unknown. Does such a theory even exist?

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We need to tread lightly if we encounter alien ecosystems

Science