In the early 1960's, Porsche commercially manufactured farm tractors.
24
Jumbo jets use 4,000 gallons of fuel to take off.
19
Sony researchers have developed a refrigerator that only opens when you smile.
9
The IRS processes more than 2 billion pieces of paper each year.
28
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
Kleenex tissues were originally used as filters in gas masks.
46
Whale oil was used in automobile transmissions as late as 1973.
56