The cigarette lighter was invented before the match.
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First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
The ball on top of a flagpole is called a 'truck'.
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The average car produces a pound of pollution every 25 miles!
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Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
1