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[http://www.lenntech.nl/periodiek/periodiek-systeem.htm] - 2017-01-27 14:36:19 - public:Trinsec

Import, random, Science - 3 | id:72479 -

Periodiek systeem der chemische elementen

[http://www.freetechbooks.com] - 2010-02-17 11:45:55 - public:Trinsec

"Welcome to FreeTechBooks!Database of Free / Open Access Online Computer Science Books, Textbooks, and Lecture Notes"

[http://www.newscientist.com/article.ns?id=dn6303] - 2007-06-07 07:34:58 - public:Trinsec

Being able to talk about something may define understanding, suggests a counting study in tribal people without words for higher numbers

[http://www.exploratorium.edu/ronh/weight/] - 2007-06-07 07:33:46 - public:Trinsec

Ever wonder what you might weigh on Mars or The Moon? Here's your chance to find out.

[http://www.howstuffworks.com] - 2007-05-29 18:30:22 - public:Trinsec