The IRS processes more than 2 billion pieces of paper each year.
28
The ball on top of a flagpole is called a 'truck'.
24
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Sony researchers have developed a refrigerator that only opens when you smile.
9
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
Castor oil is used as a lubricant in jet planes.
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