First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
Kleenex tissues were originally used as filters in gas masks.
46
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
More than a billion transistors are manufactured every second.
-25
The average car produces a pound of pollution every 25 miles!
18
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
