Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
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There's an "anti-smartphone" called John's Phone which can only make and receive calls.
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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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About 39,000 gallons of water are used to produce the average car!
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The blueprint for a floating city has just been approved by the largest port construction and design company in China. It's entirely self-sustainable, and extends underwater.
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More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
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The average car produces a pound of pollution every 25 miles!
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