The ball on top of a flagpole is called a 'truck'.
24
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
Sony researchers have developed a refrigerator that only opens when you smile.
9
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
There are only 14 blimps in the world.
69
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
The first alarm clock could only ring at 4 a.m.
120