Kleenex tissues were originally used as filters in gas masks.
46
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
The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
7
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41