Originally, BMW was an airplane engine manufacturer.
69
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The first alarm clock could only ring at 4 a.m.
120
Castor oil is used as a lubricant in jet planes.
-5
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
The IRS processes more than 2 billion pieces of paper each year.
28
Kleenex tissues were originally used as filters in gas masks.
46
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144