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 normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
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Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
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There's an "anti-smartphone" called John's Phone which can only make and receive calls.
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A small airplane can fly backwards.
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Originally, Nintendo was a playing card manufacturer.
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