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Wikipedia: Pearl
This site from Wikipedia provides a general overview of the pearl, a hard, rounded secretion formed inside the shell of mollusks.
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Wikipedia: Topaz
This encyclopedia article from Wikipedia provides a general overview of the gemstone topaz. Liinks are provided for additional information on related subjects.
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Wikipedia: James Prescott Joule
Wikipedia offers a biographical sketch of James Prescott Joule discusses his contributions to the world of science, including the conservation of energy.
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Wikipedia: Woodwind Instrument
This site from Wikipedia provides an overview of woodwind instruments and discusses the three types of woodwind instruments and the difference between brass instruments and woodwind instruments.
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Wikipedia: Endocytosis
This encyclopedia article from Wikipedia over endocytosis discusses the three forms in which it can take place. Links are provided for additional information on this subject as well as related subjects.
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Wikipedia: Cerebrospinal Fluid
For an overall look at cerebrospinal fluid (CSF), visit this open-source encyclopedic site. You will learn what its functions are, how it is produced, and how it is useful in the diagnosis of neurological diseases.
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Wikipedia: Tragedy
This encyclopedia entry from Wikipedia about tragedies discusses its Greek origins; the typical characteristics of a tragedy; and lists some examples of ancient Greek, Roman, English, and modern-day writers of tragedies.
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Wikipedia: Gas Laws
This site from the encyclopedia Wikipedia provides a basic overview of the three gas laws (Boyle's, Charles', and Graham's Law) and information on the ideal gas law is found here.
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Wikipedia: Economy of Nepal
Covers the economic basics of Nepal, including the GDP, poverty rates, budget information, and exports. Detailed statistics are provided as well.
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Wikipedia: Eiffel Tower
The article from Wikipedia on the Eiffel Tower discusses the history of the monument and its construction. It also describes the tower's famous ironwork and tells of its significance to the city of Paris.
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Wikipedia: Aromatic Hydrocarbon
A nice, concise summary of aromatic hydrocarbons is found here at Wikipedia encyclopedia. The article tells what they are, what Huckel's Rule is, gives information on aromatic bonding, and gives a couple of examples of aromatic...
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Wikipedia: Common Logarithm
Discusses using a table of logarithms before the use of calculators, gives an example of a logarithm and the parts of a logarithm, and also discusses the difference in the way mathematicians and engineers write logarithms.
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Wikipedia: Gary Kildall
This site from the encyclopedia Wikipedia provides a biography on Gary Kidall details his founding of Digital Research Corporation, his creation of the CP/M Operating System, and his snubbing of IBM after their approach to use a version...
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Wikipedia: Mount Parnassus
A brief encyclopedia entry from Wikipedia on Mount Parnassus. The information is short, but links are provided for additional information on related subjects.