Any modern jet is capable of breaking the sound barrier.
34
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Energy is being wasted if a toaster is left plugged in after use.
21
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
The first alarm clock could only ring at 4 a.m.
120
The ball on top of a flagpole is called a 'truck'.
24


