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Sponsored Links:
Britannica.com - Clockworks: From Sundials to the Atomic Second (Popularity:  )
(Score: 12.10)
http://www.britannica.com/clockworks
Britannica.com explores the history of timekeeping, from sundials to cesium atomic clocks.
Category: Science\Astronomy\Calendars and Timekeeping
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Pocatello Tower (Popularity: )
(Score: 11.11)
http://hometown.aol.com/towerdan/pihindex.html
Pocatello Tower. Pocatello Idaho Air Traffic Control Tower.
Category: Science\Technology\Aerospace\Aeronautics
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Ask Dr. Math : Tower of Hanoi (Popularity: )
(Score: 10.31)
http://mathforum.org/dr.math/faq/faq.tower.hanoi.html
Includes a small introduction to the Tower of Hanoi including History. Goes on to talk about different ways of tackling the problem.
Category: Science\Math\Recreations\Famous Problems
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NASA FutureFlight Central (Popularity: )
(Score: 10.29)
http://www.ffc.arc.nasa.gov
Interactive, high fidelity ATC tower simulator creating a functionally accurate physical and software replication of a air traffic control tower or operations center.
Category: Science\Aeronautics and Aerospace\Aviation
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Eiffel Tower Photographs (Popularity: )
(Score: 10.11)
http://www.artday.com
Photos taken daily of the Eiffel Tower by a native Parisian.
Category: Science\Geography\Cartography
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Click-l (Popularity: )
(Score: 8.95)
http://www.click-l.com/
Companion website to the click-l mailing list. Clicker Training, based on Karen Pryor's book, "Don't Shoot the Dog", is about using a bridge (secondary reinforcer) to shape behavior. Check out ...
Category: Science\Social Sciences\Psychology\Behavior Analysis
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Chicago Wilderness: A Regional Nature Reserve (Popularity: )
(Score: 8.94)
http://www.chicagowilderness.org/
The Chicago Wilderness coalition is an unprecedented alliance of more than 160 public and private organizations working together to protect, restore, study and manage the precious natural ecosystems of the ...
Category: Science\Environment\Biodiversity\Conservation
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Chicago Architecture Imagebase (Popularity: )
(Score: 8.43)
http://tigger.uic.edu/depts/ahaa/imagebase
Contains images and text, documentary and interpretive, concerning the history of Chicago's built environment.
Category: Science\Geography\Cartography
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Chicago Department of Environment (Popularity: )
(Score: 8.43)
http://egov.cityofchicago.org/city/webportal/portalEntityHomeAction.do?entityName=Environment&entityNameEnumValue=05
Gives information on Chicago's air quality and regional pollution prevention programs.
Category: Science\Environment\Air Quality
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Finance and Banking in the Austrian Empire and the Republic of Austria (Popularity: )
(Score: 8.36)
http://www.econlib.org/library/Mises/msEnc1.html
Essays from the Encyclopedia Britannica, from the 12th edition, 1921. Fully searchable.
Category: Science\Social Sciences\Economics\Schools of Thought
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Chicago IL: Argonne Advanced Photon Source (APS) (Popularity: )
(Score: 8.35)
http://www.aps.anl.gov/
operated by The University of Chicago under contract with the U.S. Department of Energy (DOE)
Category: Science\Physics\Particle\Research Centers
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The Chicago Astronomer (Popularity: )
(Score: 8.35)
http://astronomer.proboards23.com/
Forum for amateurs in and out of Chicago with categories such as space exploration, events and observations, and strange and unusual astronomy.
Category: Science\Astronomy\Amateur\Chats and Forums
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Advanced Fertility Center of Chicago: Embryo freezing (Popularity: )
(Score: 8.30)
http://www.advancedfertility.com/cryo.htm
Cryopreservation of embryos after in vitro fertilization. Fairly detailed explanation. Chicago IL.
Category: Science\Biology\Cryobiology\Sperm, Ova, Embryo Storage
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Xenophon Group: Scythians (Popularity: )
(Score: 8.28)
http://www.xenophongi.org/crimea/cities/scythia/scythpeo.htm
The article on Scythia from the 11th edition of Encyclopedia Britannica, plus photographs of the excavation of a necropolis at the mouth of the Alma River.
Category: Science\Social Sciences\Archaeology\Periods and Cultures
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University of Illinois at Chicago (Popularity: )
(Score: 8.19)
http://www.uic.edu/depts/soci/
Sociology (Chicago, IL)
Category: Science\Social Sciences\Sociology\Academic Departments
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Radiochemistry of Technetium (Popularity: )
(Score: 8.08)
http://lib-www.lanl.gov/cgi-bin/getfile?rc000035.pdf
Full text of the monograph by Edward Anders (Enrico Fermi Institute and Dept. of Chemistry, University of Chicago, Chicago, Illinois). [PDF format]
Category: Science\Chemistry\Elements\Technetium
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Subterranea Britannica (Popularity: )
(Score: 8.02)
http://www.subbrit.org.uk/
A society for those interested in man-made and man-used underground space - from deneholes to dug-outs and from souterrains to subways.
Category: Science\Social Sciences\Archaeology\Organizations
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American Institute of Chemical Engineers - Chicago Section (Popularity: )
(Score: 7.92)
http://www.aiche-chicago.org/
News and information about the Chicago section and its activities and programs.
Category: Science\Technology\Chemical Engineering\Organizations and Societies
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University of Chicago Press (Popularity: )
(Score: 7.89)
http://www.press.uchicago.edu/Subjects/virtual_math.html
Mathematics section, including Chicago Lectures in Mathematics. Online ordering.
Category: Science\Math\Publications\Book Publishers
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University of Chicago (Popularity: )
(Score: 7.89)
http://socialsciences.uchicago.edu/sociology/
Sociology (Chicago, IL)
Category: Science\Social Sciences\Sociology\Academic Departments
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