An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Super Nintendo and Sega Genesis had an online multiplayer mode.
-2
There are only 14 blimps in the world.
69
Attics were invented in Attica.
43
Jumbo jets use 4,000 gallons of fuel to take off.
19
A small airplane can fly backwards.
75
In the early 1960's, Porsche commercially manufactured farm tractors.
24