An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Any modern jet is capable of breaking the sound barrier.
34
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
The life boat was patented in 1845!
29
Super Nintendo and Sega Genesis had an online multiplayer mode.
-2
In the early 1960's, Porsche commercially manufactured farm tractors.
24
The electric chair was invented by a dentist!
122
Kleenex tissues were originally used as filters in gas masks.
46