A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Attics were invented in Attica.
43
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
In 1998, Sony accidently sold 700,000 camcorders that had the technology to see through people's clothes.
88
Castor oil is used as a lubricant in jet planes.
-5