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[josef zeman]
Geochemistry Textbooks
Excelent on-line Geochemistry textbook in PDF format. Writen by William M. White, Professor of Cornell University.
Hubble Space Telescope
View the unique collection of Hubble images from space (black holes, galaxies, nebulae, star clusters stars and solar system).
TOXNET
A cluster of databases on toxicology, hazardous chemicals and related areas (including human and animal toxicity, and environmental fate).
EPA
U.S. Environmental Protection Agency homepage – valuable source of information about various problems of environment (including databases and software).
Scientific American
Journal Scientific American provides readers with the latest news and information on science and technology.
Science Direct
Internet resource for Scientific, Technical and Medical information (over 1,200 academic journals, over 30 million abstracts from scientific articles).
Die Energie der Welt ist constant.
Die Entropie der Welt strebt einem Maximum zu.
Last Updated October 19, 2003
© 2003 Josef Zeman
Rudolf Clausius (1822–1888), 1865