It takes six months to build a Rolls Royce...and 13 hours to build a Toyota.
93
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
More than a billion transistors are manufactured every second.
-25
The American Automobile Association was founded for the sole purpose of warning motorists of police speed traps!
36
The life boat was patented in 1845!
29
Jumbo jets use 4,000 gallons of fuel to take off.
19
Kleenex tissues were originally used as filters in gas masks.
46
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