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Lehekülgede arv dokumendis
2012-10-23
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Peeter Termomeeter
Õppematerjali autor
1 Wave energy Introduction to wave energy There are several possibilities to harvest different forms of energy from the sea. One of these options is the usage of waves for the generation of electricity. The devices needed to perform this task are called wave energy converters. Wave energy is indirect solar energy in twice. At first there is the wind, which is caused by variations in atmospheric pressure due to a differential solar heating of earth's surface by the sun. Different regions of pressure drives a force which rises a movement of atmospheric air masses that causes the earths wind system. If wind strikes over the surface of an open water, waves are induced. First they are very flat with only a low level of energy
surface on which it forms, as well as by the shape of the surface. Please understand that the layer is not solid; it is “shearing” with general flow throughout its depth – which may be as much as 0.100-inch - with movement increasing as to distance from the surface on which it is formed. And as close as 0.020-inch from the surface, flow may still be in the order of 80-percent of that in midstream, which means that the restriction formed by the boundary layer is not very great. Nonetheless, it is there, and it accounts for such things as round ports having less resistance to flow than square ports, area for area, and for the ability of a single port to match the flow of a pair of ports of somewhat larger area. It also accounts for the fact that flow resistance increases in direct proportion with the length of a port, and much of the resistance resulting from the shape of a particular port is
president of the US from 193345. · Hans Rebane = 1897 founded the first Estonian-language newspaper in the US Eesti Ameerika Postimees (published in NY until 1911) · 1898 founded an Estonian Lutheran congregation in NY (still exists today) 2. Signficant waves of migration from Estonia to the US in the 20th century, their reasons. *The failure of the 1905 Revolution: The first significant wave of immigration · Brought a strong Socialist contingent to the United States; led to the formation of many Estonian American Socialist and Communist organizations. * The 1920s30s: · Establishment of independent Estonia · Tightening of American immigration laws · Estonian immigration to the United States slowed down dramatically 1924 The Estonian quota fixed at 116; even this small annual quota was not used up
English literature is one of the oldest literatures in Europe; dates back to the 6th century AD. Oral literature, i.e. not written down, spread from person to person. In 449 AD Anglo-‐Saxon tribes invaded England – beginning of the Anglo-‐Saxon period in English literature. The first form of literature was folklore, carried by scops and gleemen, who sang in alliterative verse (a kind of simple poetry). Prose developed much later. The first form of recorded English literature was the epic Beowulf, which was produced sometime near the end of the 7th and beginning �
Japanese festivals Japanese festivals are traditional festive occasions. Some festivals have their roots in Chinese festivals but have undergone dramatic changes as they mixed with local customs. Some are so different that they do not even remotely resemble the original festival despite sharing the same name and date. There are also various local festivals (e.g. Tobata Gion) that are mostly unknown outside a given prefecture. It is commonly said that you will always find a festival somewhere in Japan. Matsuri is the Japanese word for a festival or holiday. In Japan, festivals are usually sponsored by a local shrine or temple, though they can be secular. There is no specific matsuri days for all of Japan; dates vary from area to area, and even within a specific area, but festival days do tend to cluster around traditional holidays such as Setsubun or Obon. Almost every locale has at least one matsuri in late summer/early autumn, usually related
Someone or something is speaking through her. Clarissa Dalloway. Beginning-clarissa opens a window-a birght morning in June. 52 y old upper- class London housewife. Preparing a party. Goes to buy flowers-walks through the streets of London. Different people participate in the same experience-waiting for the queen to pass in a motor-car, airpane writing on the sky, beautiful flowers in the park. Different reactions. Somebody has to die for the others to feel the importance of living. Great courage to plunge into life or death. To 'assemble'-after calamities of life, after disintegration of war Septimus Smith. Clarissa's intended 'double'. Clarissa-light and happiness. Septimus-dark, shell shocked, war-smitten. Airplane writing for people in park-wonder. For septimus-horror. Reminds of the sound of explosion. Loss of friend Evans. Septimus' role in the book. To show what it is like to be unable to find stability in familiar circumstances
" In the stars that launch gamma-ray bursts, the spinning black hole and the disk may pump out enough energy to blow the star apart. But in most collapsing stars, the collapse ends when the Earth-size core crunches into a neutron star the size of a city, at a temperature of a hundred billion degrees (55 billion degrees Celsius). This is the point of maximum scrunch. The squeezed core rebounds like a squished sponge, launching a shock wave that races outward, ramming into the material that is still pouring down from the star's outer layers. Astronomers once thought this shock would be enough to tear the star apart and generate the explosion, says Adam Burrows of the University of Arizona. Turns out it's not so simple. Simulating a supernova gobbles enormous amounts of computer power, and even the largest supercomputers can't fully reproduce an exploding star in three dimensions. But over the years
All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording or by any information storage and retrieval system, without permission in writing from the publisher. For information address The Macmillan Company, 866 Third Avenue, New York, New York 10022. Library of Congress Catalog Card Number: 63-16109 Crown copyright is acknowledged for the following illustrations from Great Britain's Public Record Office: S.P. 53/18, no. 55, the Phelippes forgery, and P.R.O. 31/11/11, the Bergenroth reconstruction. Published by arrangement with The Macmillan Company FIRST PRINTING SECOND PRINTING THIRD PRINTING FOURTH PRINTING FIFTH PRINTING SIXTH PRINTING SEVENTH PRINTING EIGHTH PRINTING NINTH PRINTING TENTH PRINTING SIGNET TRADEMARK: REG. TJ.S. PAT. OFF. AND FOREIGN COUNTRIES REGISTERED TRADEMARK---MARCA REGISTBADA HECHO EN CHICAGO, U.S.A.
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