An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Car airbags kill 1 person for every 22 lives that they save.
80
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
The first alarm clock could only ring at 4 a.m.
120
Any modern jet is capable of breaking the sound barrier.
34
