The first alarm clock could only ring at 4 a.m.
120
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
More than a billion transistors are manufactured every second.
-25
A small airplane can fly backwards.
75
The IRS processes more than 2 billion pieces of paper each year.
28
All GPS units sold in the civilian market have to be programmed to deactivate themselves if they detect they are travelling faster than 1200 MPH or are above 60,000 feet in altitude to prevent them being used in intercontinental ballistic missiles.
2
The electric chair was invented by a dentist!
122