Castor oil is used as a lubricant in jet planes.
-5
In the early 1960's, Porsche commercially manufactured farm tractors.
24
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Jumbo jets use 4,000 gallons of fuel to take off.
19
The IRS processes more than 2 billion pieces of paper each year.
28
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