The cigarette lighter was invented before the match.
210
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
A small airplane can fly backwards.
75
There are only 14 blimps in the world.
69
Castor oil is used as a lubricant in jet planes.
-5
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Attics were invented in Attica.
43
