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Science and Nature

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Generate clean reliable electricity from the natural power of the sun with Akeena Solar Systems
http://www.akeena.net/
Chemical Information Exchange and Who's Who database to search, find and contact people in the Chemical Industry and Academic Chemistry.
http://www.chemtogether.com/
All about time, time measurement, objective x subjective time, space-time and relativity.
http://www.cognitime.com/
Resource for educators and students of game theory.
http://www.gametheory.net/
IQ test packed with 25 free pages of analysis, statistics, advice, and career tips.
http://www.intelligencetest.com/
KIND News Online is a fun, kid-friendly site designed to teach the importance of treating people, animals, and the environment with kindness and respect.
http://www.kindnews.org/
Veolia Environment waste management division. Covers recycling, waste collection, cleaning, cleansing, incineration, sanitation, composting and energy recovery.
http://www.onyx-environment.com/
Collection of free professionally developed tests that help users discover their personality type and individual personality traits.
http://www.personalitytest.net/
Psychology, diagnostics, second opinions.
http://www.psyline.nl/
Collection of original articles and educational materials from science ray Lovegrove.
http://www.raysapoint.com/
Satrosphere, Aberdeen's Hands-on science centre.
http://www.satrosphere.net/
Science Museum of Minnesota offers tons of interactive experiences, stunning Omnifilms, and awing 3D Laser shows.
http://www.smm.org/
Increase your science IQ with a cool science fact sent to your email each workday.
http://www.scienceiq.com/
Science articles on a variety of topics, from ecology to astronomy.
http://www.sciencelives.com/
Supplies and manufactures laboratory test tubes, blood collection, specimen containers and single use laboratory products. Includes product overviews and photographs.
http://www.teklab.co.uk/
Mainly science education,related to UK NatCurric.
http://www.zephyrus.co.uk/