It takes six months to build a Rolls Royce...and 13 hours to build a Toyota.
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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).
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The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
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The United States produces enough plastic film annually to cover the entire state of Texas.
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