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
Contrary to popular belief, putting sugar in a car's gas tank will NOT ruin its engine.
25
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
Originally, Nintendo was a playing card manufacturer.
70
The electric chair was invented by a dentist!
122
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