Any modern jet is capable of breaking the sound barrier.
34
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
The cigarette lighter was invented before the match.
210
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
The average car produces a pound of pollution every 25 miles!
18
Castor oil is used as a lubricant in jet planes.
-5
Attics were invented in Attica.
43