Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
More than a billion transistors are manufactured every second.
-25
Castor oil is used as a lubricant in jet planes.
-5
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
Attics were invented in Attica.
43
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
