Sony researchers have developed a refrigerator that only opens when you smile.
9
The ball on top of a flagpole is called a 'truck'.
24
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
More than a billion transistors are manufactured every second.
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