An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
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The hands of the clock on the back of the $100 bill are set at approximately 4:10.
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The United States has paved enough roads to circle the Earth over 150 times.
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Research has determined that most people are happiest at 7:26pm on a Saturday night.
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The Gmail logo was designed the night before it was launched.
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