Download e-book for iPad: Alaska Science Nuggets (Natural History) by Neil Davis
By Neil Davis
Do iceworms consume ice? are you able to listen the aurora? How does mosquito repellent work? Why are Alaskan volcanoes lightly spaced alongside the coast? Is it attainable for decent water to freeze quicker than chilly water? the place are Alaska's greater than one hundred twenty five sizzling springs? Why are northern twilights so long? Do glaciers slide or do they flow? Why do snowflakes flutter as they fall? In Alaska technological know-how Nuggets, Neil Davis solutions those and lots of different exciting questions within the exciting and informative sort that makes him certainly one of Alaska's favourite technological know-how writers. This compendium of approximately four hundred articles, together with articles via different participants to a technological know-how column carried by means of quite a few Alaska newspapers, discusses phenomena as varied because the northern lighting fixtures, permafrost, glaciers, meteorology, volcanoes, earthquakes, archaeology, Alaskan vegetation, mammoths, early people, and northerly living. Tourists and long-time Alaskans alike have made this much-loved publication a bestseller for years. Alaska technology Nuggets is a brilliant reference or reward for someone attracted to the outstanding typical heritage of the North.
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Like sunlight, the solar wind derives from the sun, but it has quite different characteristics. Sunlight is composed of electromagnetic waves whereas the solar wind is made up of tiny particles, mostly electrons and protons. Sunlight travels to the earth in only about eight minutes, but it takes a day or two for the particles in the solar wind to make the trip. Even so, the solar wind moves right along, traveling at 300 to more than 500 kilometers per second, fast enough to make the trip to earth in a day or two.
A43 1989eb ddc : 500 subject : Science, Science--Alaska, Geophysics, Geophysics--Alaska. Page i Alaska Science Nuggets Neil Davis University of Alaska Press Page ii International Standard Book Number: 0-912006-38-2 (previously ISBN 0-915360-02-0) Library of Congress Catalog Card Number: 82-80679 Printed in the United States of America Geophysical Institute First printing, 1982 Second printing, 1984 University of Alaska Press Third printing, 1989, 2500 copies Fourth printing, 1992, 2500 copies Fifth printing, 1998, 2,000 copies This material is based in part upon work supported by the National Science Foundation under Grant No.
Then if one looks overhead, one will see large, weak patches of light blinking on and off every few seconds. It is not bright but it is awe-inspiring. The pulsating aurora may persist for many minutes or even several hours. Thus even when you get cold or tired and go in, it will continue to play on in your absence. Oct 81:509 Photographing the Aurora The aurora is one of nature's most beautiful dramas. Played against a cosmic backdrop, the colors and motions are often subtle and quick, but such a show is not difficult to photograph if strict attention is paid to certain procedures which are peculiar to auroral photography.
Alaska Science Nuggets (Natural History) by Neil Davis