The electric chair was invented by a dentist!
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Sony researchers have developed a refrigerator that only opens when you smile.
9
The average car produces a pound of pollution every 25 miles!
18
A small airplane can fly backwards.
75
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).
1
Future biotechnology could be used to trick a prisoner's mind into thinking they have served a 1,000 year sentence in only eight hours, a group of scientists have claimed.
0
The life boat was patented in 1845!
29