The IRS processes more than 2 billion pieces of paper each year.
28
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
Mico headphones read your brainwaves and select music based on your state of mind.
7
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Kleenex tissues were originally used as filters in gas masks.
46
Any modern jet is capable of breaking the sound barrier.
34
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41