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Celestia
The free space simulation that lets you explore our universe in three dimensions. Celestia runs on Windows, Linux, and Mac OS X.
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Chemistry
Assistant
An expression calculator for fast calculation molecular weight of
compounds by simple entry of chemical formula, and replaces the
element symbols with their atomic weight.
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Periodic
Table
Shows visually the change of physical condition with the change of
temperature. The language, the speed of temperature change and the
exchange of elements can be adjusted by configuration file.
Available in seven languages.
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EQTabla
A program related to the
periodic table of the chemical elements. It provides basic and
advanced information quickly and easily. However, it is not a mere
periodic table, but also it can filter and sort elements and much
more.
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African
Geography Tutor
African Geography Tutor helps you learn all the African countries
by name and location, with a study mode ("Explore
Africa") and two types of quiz. A great learning tool for all
ages! Two others are available at the site.
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copyright
Truly Free Stuff 2006 |
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