The first alarm clock could only ring at 4 a.m.
120
Any modern jet is capable of breaking the sound barrier.
34
Mico headphones read your brainwaves and select music based on your state of mind.
7
The United States produces enough plastic film annually to cover the entire state of Texas.
13
Attics were invented in Attica.
43
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
More than a billion transistors are manufactured every second.
-25
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60