The ball on top of a flagpole is called a 'truck'.
24
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
There’s an internet-enabled jacket which gives you a “hug” every time a Facebook friend likes your status.
12
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
Whale oil was used in automobile transmissions as late as 1973.
56
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27


