Аннотация от автора: Yeast is a single-celled organism that bakers put into dough to make it rise. It is also used in the production of beer, wine, and other alcoholic beverages. The yeasts used commercially consist of masses of the microscopic yeast organisms. There are about 600 species of yeasts, but only a few are used commercially...

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Аннотация от автора: Yeats, pronounced yayts, William Butler (1865-1939), an Irish poet and dramatist, won the 1923 Nobel Prize for literature. Many critics consider him the greatest poet of his time. Yeats led the Irish Literary Revival, a movement of the late 1800's and early 1900's that stimulated new appreciation of traditional Irish literature. The movement also encouraged the creation of works written in the spirit of Irish culture, as distinct from English culture...

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Аннотация от автора: Yellow fever is a virus disease carried by certain mosquitoes. The virus damages many body tissues, but especially the liver. As a result of this damage, the liver cannot function properly and yellow bile pigments gather in the skin. These pigments make the skin look yellow and give the disease its name...

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Аннотация от автора: Yellow jacket is a type of small wasp with black-and-yellow markings. Some people mistakenly call yellow jackets "bees," but they actually are related to hornets. Like hornets, yellow jackets make their nests of paper. They form the paper by chewing up old wood and plant fibers. The nests consist of numerous hexagonal cells inside a thick paper covering. Most yellow jackets nest underground, but sometimes nests can be found hanging in trees or bushes, or within hollows in old stumps or the walls of buildings...

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Аннотация от автора: Yellowstone National Park, the oldest national park in the world, is famous for its many natural wonders. The park has more geysers and hot springs than any other area in the world. Yellowstone's scenic attractions include deep canyons, thundering waterfalls, sparkling lakes, and vast evergreen forests broken by rolling meadows. Yellowstone is also one of the largest wildlife preserves in the United States. It has a greater concentration of large and small animals than any other area in the United States except Alaska. Bears, elk, and bison (American buffaloes) roam the park, and bald eagles, trumpeter swans, and white pelicans nest there...

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Аннотация от автора: Yeltsin, Boris Nikolayevich (1931-...), is president of Russia. He was elected in 1991 when Russia became independent. In 1990 and 1991, while Russia was still a republic of the Soviet Union, he headed the Russian republic's legislature. Yeltsin played a major role in the Soviet Union's collapse. In December 1991, Yeltsin and the presidents of Belarus and Ukraine formed the Commonwealth of Independent States (C.I.S.). They declared the Soviet Union had ceased to exist. Most of the other former republics joined the C.I.S. The Soviet Union's leader, Mikhail S. Gorbachev, resigned, and the Soviet Union was dissolved...

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Аннотация от автора: Yemen is a country in the southern part of the Arabian Peninsula. The Gulf of Aden borders Yemen on the south and the Red Sea on the west. Most of the people of Yemen are Arab Muslims...

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Аннотация от автора: Yiddish language is a language of European Jews and their descendants. Yiddish has been the language of the Ashkenazim for about 1,000 years. The Ashkenazim are Jews primarily of central and eastern European origin. Yiddish is generally classified as a Germanic language, like English, German, Dutch, and the Scandinavian tongues--Icelandic, Danish, Norwegian, and Swedish. However, Yiddish is written in Hebrew characters from right to left like Hebrew and Aramaic, two Semitic languages used by the Jews...

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Аннотация от автора: Yiddish literature is the literature of Jews who write and speak the Yiddish language. Yiddish literature originated in the late 1200's and reached its peak in the late 1800's and early 1900's...

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Аннотация от автора: Yoga is a term that has two meanings. It is both (1) a school of thought in the Hindu religion and (2) a system of mental and physical exercise developed by that school. Followers of the yoga school, who are called yogis or yogins, use yoga exercise to achieve their goal of isolation of the soul from the body and mind. Many non-Hindus in Western countries practice some form of yoga exercise in hope of improving their health and achieving peace of mind. The word yoga means discipline in Sanskrit, the classical language of India...

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