The first alarm clock could only ring at 4 a.m.
120
The IRS processes more than 2 billion pieces of paper each year.
28
Any modern jet is capable of breaking the sound barrier.
34
Kleenex tissues were originally used as filters in gas masks.
46
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
The Queen Mary - the grandest vessel of her day - had many of her vital components made by car manufacturer Skoda!
23
More than a billion transistors are manufactured every second.
-25
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4