Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
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Originally, Nintendo was a playing card manufacturer.
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The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
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First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
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