Castor oil is used as a lubricant in jet planes.
-5
Jumbo jets use 4,000 gallons of fuel to take off.
19
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
In the early 1960's, Porsche commercially manufactured farm tractors.
24
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
Whale oil was used in automobile transmissions as late as 1973.
56
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
