Bullet proof vests, fire escapes, windshield wipers, and laser printers were all invented by women.
1k
In an average hour, there are over 61,000 Americans airborne over the United States.
24
The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
6
160 cars can drive side by side on the Monumental Axis in Brazil, the world's widest road.
39
Caffeine boosts memory.
405
On average, the life span of an American dollar bill is eighteen months.
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