Energy is being wasted if a toaster is left plugged in after use.
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Jumbo jets use 4,000 gallons of fuel to take off.
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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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Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
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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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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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