The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
Sony researchers have developed a refrigerator that only opens when you smile.
9
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
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Jumbo jets use 4,000 gallons of fuel to take off.
19
The life boat was patented in 1845!
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