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Channel: Popular Science - Michael Dumiak
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Where Is Your Money?

Once upon a time, when banks observed the gold standard, every dollar was backed by an equal amount of metal. Put simply, your money was in the vault. But now cash is all…

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The Firefighting Robot

Shifting through the mossy undergrowth of Germany's Black Forest, antennae raised and leg joints quietly clicking forward, OLE (pronounced "oh-luh") is a St. Bernard–size…

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