Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The cigarette lighter was invented before the match.
210
Jumbo jets use 4,000 gallons of fuel to take off.
19
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
The average car produces a pound of pollution every 25 miles!
18