Kleenex tissues were originally used as filters in gas masks.
46
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
The life boat was patented in 1845!
29
Google founders Sergey Brin and Larry Page have expressed their desire to see the search engine become artificial intelligence itself. To achieve that goal, they created the highly-protected “X lab.”
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Jumbo jets use 4,000 gallons of fuel to take off.
19
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27