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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There's a Mumbai-based pizzeria that now delivers pizza by drone.
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About 39,000 gallons of water are used to produce the average car!
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An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
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Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
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The life boat was patented in 1845!
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