INVENTIONS

6/13/2012

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BALLPOINT PEN?  Biro Brothers
THERMOMETER? Galileo
ROTARY STEAM ENGINE? James Watt
JET ENGINE? Sir Frank Whittle
GUNPOWDER? Roger Bacon

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WORLD HOLY LOCATIONS

6/13/2012

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Grand Central Terminal, Park Avenue, New York is the world's largest railway station.
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HOW MUCH SLEEP IS ENOUGH?

6/13/2012

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Age

Newborns (0-2 months)
Infants (3-11 months)
Toddlers (1-3 years)
Preschoolers (3-5 years)
School-age children (5-10 years)
Teens (10-17 years)

Sleep needs

12-18 hours
14-15 hours
2-14 hours
1-13 hours
10-11 hours
8.5-9.25 hours
                                                                                                                                                              Source : NATIONAL SLEEP FOUNDATION

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    General Knowledge

    They are general knowledge. I just store them together.

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