The IRS processes more than 2 billion pieces of paper each year.
28
The first alarm clock could only ring at 4 a.m.
120
Sony researchers have developed a refrigerator that only opens when you smile.
9
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
Jumbo jets use 4,000 gallons of fuel to take off.
19
The cigarette lighter was invented before the match.
210