Download PDF by Rob Nagel: UXL Encyclopedia of Science

By Rob Nagel

ISBN-10: 0787654329

ISBN-13: 9780787654320

Contains six hundred themes within the existence, earth, and actual sciences in addition to in engineering, know-how, math, environmental technology, and psychology.

Show description

Read or Download UXL Encyclopedia of Science PDF

Similar environmental science books

Ground Control and Improvement - download pdf or read online

A entire compilation considering a number of smooth tools getting used world wide to enhance soil and rock stipulations helping new and remedial development. floor water decreasing and drainage ideas, soil compaction, excavation help equipment, permeation and jet grouting are one of the themes mentioned.

Greening through IT: Information Technology for by Bill Tomlinson PDF

Environmental matters usually span lengthy classes of time, far-flung components, and labyrinthine layers of complexity. In Greening via IT, invoice Tomlinson investigates how the instruments and methods of data know-how (IT) may help us take on environmental difficulties at such mammoth scales. Tomlinson describes theoretical, technological, and social points of a starting to be interdisciplinary method of sustainability, "Green IT," providing either a human-centered framework for realizing eco-friendly IT platforms and particular examples and case reviews of eco-friendly IT in motion.

Read e-book online Geomorphology and Global Environmental Change PDF

How will international environmental swap have an effect on the panorama and our interplay with it? except weather swap, there are different vital catalysts of panorama swap, together with reduction, hydroclimate and runoff, sea point adaptations and human job. This quantity summarizes the cutting-edge about the geomorphic implications of world environmental switch, interpreting such results on lakes, rivers, coasts, reefs, rainforests, savannas, deserts, glacial beneficial properties, and mountains.

Additional info for UXL Encyclopedia of Science

Sample text

Abrasives can be either natural or synthetic materials. Until the twentieth century, humans used naturally occurring materials, such as sandstone, quartz, emery, corundum, diamonds, and garnet, as abrasives. Then, in 1891, American inventor Edward G. Acheson (1856–1931) produced silicon carbide by heating a mixture of clay and coke. For 50 years, silicon carbide (also known as CarborundumTM) was the second-hardest substance known, after diamond. This property made it popular as an abrasive. Other synthetic compounds, such as aluminum oxide, boron carbide, and boron nitride are also used now as abrasives.

Some lakes in Scandinavia and New York’s Adirondack Mountains are completely devoid of fish life. Acid rain also eats away at buildings and metal structures. From the Acropolis in Greece to Renaissance buildings in Italy, ancient structures are showing signs of corrosion from acid rain. In some industrialized parts of Poland, trains cannot exceed 40 miles (65 kilometers) per hour because the iron railway tracks have been weakened from acidic air pollution. Treatment of water bodies affected by acid rain Usually, waters affected by acid rain are treated by adding limestone or lime, an alkaline substance (base) that reduces acidity.

The plant has adapted to seasonal changes in precipitation by restricting leaf growth in the dry season. ) U•X•L Encyclopedia of Science, 2nd Edition 2 9 Adaptation Biologists now recognize natural selection as the means by which evolutionary adaptation occurs. Exactly how specific adaptations arise, however, is far from solved. It is easy to imagine how natural selection might produce relatively simple adaptations such as camouflage: a rabbit that lives in regions covered by snow in winter is better protected from prey if it produces a white coat during the winter months.

Download PDF sample

UXL Encyclopedia of Science by Rob Nagel


by Joseph
4.5

Rated 4.38 of 5 – based on 7 votes