Five Best Ideas of the Day
Published each weekday, at noon.
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It’s possible to trick your heart into thinking you exercise.
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Satellite GPS is vulnerable to hacking, so ships are returning to old-fashioned radio signals.
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Here’s how a microbe in your intestine might help fight auto-immune diseases like multiple sclerosis.
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That ‘free sample’ isn’t free. Understanding persuasion can make us smarter consumers.
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Big data — and tax breaks — can save small towns.