When withdrawing money from an ATM, the 'whirring' sound before your money pops out is actually a recording. The actual mechanism is so far back that you can't hear it.
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You share your birthday with at least 9 million other people in the world.
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The WD in WD-40 stands for Water Displacer.
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No piece of square dry paper can be folded more than 7 times in half!
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A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
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Passengers on the Beijing subway can pay with plastic bottles.
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Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
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