The first alarm clock could only ring at 4 a.m.
120
More than a billion transistors are manufactured every second.
-25
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
About 39,000 gallons of water are used to produce the average car!
14
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
The average car produces a pound of pollution every 25 miles!
18
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
Jumbo jets use 4,000 gallons of fuel to take off.
19