Rowan-Robinson – författare
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5 produkter
5 produkter
Häftad, Engelska, 2001
157 kr
Skickas inom 5-8 vardagar
How old is the universe? How far away are the galaxies and how fast are they travelling away from us? What do the atoms in our bodies, our very existence, tell us about the history of the universe? Are we in a special place in the universe? What is dark matter and why do astronomers think it pervades the universe? How heavy is the vacuum? How do galaxies form? Michael Rowan-Robinson answers these questions and encapsulates all that modern astronomy has learnt about the universe around nine numbers. Some, like the age of the universe are natural choices. Others are less obvious. His motto is Montaigne's 'What do I know' and the reader emerges with a genuine feel for what we really know about the universe and also what we do not know. Only one of the nine numbers is known with real precision and four of them are extremely poorly known. Difficult ideas like the origin of the elements, the General Theory of Relativity, quantum theory, and the standard model of particle physics, ideas which underpin modern cosmology, are explained in a simple way. Speculative ideas like inflation, 'Theories of Everything', strings and superstrings, are here but they are treated with a refreshing scepticism. Although most of what we know has been learnt during the twentieth century, Rowan- Robinson gives a historical perspective and pays homage to the achievements of the Greeks, renaissance astronomers and the age of Newton. He ends the book with a look forward in time, predicting that with the advent of the MAP and PLANCK- Surveyor space missions, the Large Hadron Collider and other planned experiments, all the nine numbers will be accurately known by 2015. But many questions and mysteries will remain and the book ends with the prediction that the origin of the Big Bang itself will remain a mystery in 2100 and perhaps even in the year 3000.
Häftad, Engelska, 1995
244 kr
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Hemp, Cannabis sativa, has been called the world's most versatile plant. Materials made from hemp fiber have been discovered in tombs dating back to 7000 B.C. During the Middle Ages hemp was used to treat fevers, insomnia, and malaria. Columbus's ships had sails of hemp, and during colonial times it was universally grown because its strong fibers made superior ropes, sails, cloth, and paper. In fact, hemp was used for money in most of the Americas from 1631 until the early 1800s, and the original drafts of the Declaration of Independence and the Constitution were written on hemp paper. As a food, the oil from hemp seeds has the highest percentage of essential fatty acids and the lowest percentage of saturated fats. Britain and Canada have recently lifted bans on growing industrial hemp and today it is reappearing in the marketplace in an amazing array of products: from lip-salve, jeans, salad oil, and cheese to paper products, composite fiberboard, and biomass fuel.
E-bok
Engelska, 1995160 kr
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Hemp, Cannabis sativa, has been called the world''s most versatile plant. Materials made from hemp fiber have been discovered in tombs dating back to 7000 B.C. During the Middle Ages hemp was used to treat fevers, insomnia, and malaria. Columbus''s ships had sails of hemp, and during colonial times it was universally grown because its strong fibers made superior ropes, sails, cloth, and paper. In fact, hemp was used for money in most of the Americas from 1631 until the early 1800s, and the original drafts of the Declaration of Independence and the Constitution were written on hemp paper.As a food, the oil from hemp seeds has the highest percentage of essential fatty acids and the lowest percentage of saturated fats. Britain and Canada have recently lifted bans on growing industrial hemp and today it is reappearing in the marketplace in an amazing array of products: from lip-salve, jeans, salad oil, and cheese to paper products, composite fiberboard, and biomass fuel.This illustrated, easy-to-read guide covers all aspects of hemp:• The history of its cultivation worldwide • Its role as a source of renewable energy and as an alternative for paper manufacturing and fossil fuels• Its versatility as a fiber• Its many nutritional and medicinal uses• Examines the physiological and psychological effects of marijuana use in recreation and therapy• A comprehensive resource section includes information on organizations involved in legalizing hemp, product suppliers, and an annotated bibliography.
E-bok
Engelska, 1997117 kr
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A pocket-sized book that serves as a reminder of the many surprising facts about the medicinal and environmental value of cannabis sativa. The hemp revolution is happening, despite the efforts of politicians and law-enforcement agencies to stop it. Medical marijuana initiatives on the ballots in California and Arizona passed with overwhelming support. All around the globe this miracle plant is creating industries for food, fuel, clothing, housing, and paper that are beneficial to both humanity and the environment. Designed to fit into the back pocket of your hemp jeans, The Hemp Manifesto offers 101 ways that hemp is making a positive impact on society, and explains why in brief summaries simple enough for even congressional representatives to understand. Included are all the most surprising facts about the plant--how the Declaration of Independence was written on hemp paper; how the U.S. government grows marijuana and supplies it to eight people free of charge; how hemp seeds are the most complete source of protein and essential fatty acids known in the vegetable kingdom; and many more. The Hemp Manifesto gives the people their most important weapon in the fight for a healthy future: the truth. Small and affordable--a perfect small gift. Wars of disinformation are still being waged against this useful plant and its industries, and the real facts can be difficult to find. The Hemp Manifesto prints the simple truth.
E-bok
Spanska, 1999146 kr
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*Colón descubrió el Nuevo Mundo impulsado por velas y cuerdas de cáñamo. *Los textos originales de la Declaración de Independencia y de la Constitución de Estados Unidos se escribieron en papel de cáñamo.*Hasta principios del siglo XIX, el cáñamo se usó como dinero en el continente americano.*Se ha descubierto fibra de cáñamo en tumbas que datan del 8000 a.C.* El gobierno de Estados Unidos animó a los campesinos a cultivar cáñamo para ganar la Segunda Guerra Mundial.*La semilla e cannabis es un alimento natural perfecto: contiene proteínas y ácidos grasos esenciales. *Más de 100 medicamentos se elaboran con cannabis.*Henry Ford construyó un auto con carrocería y combustible de cáñamo.Del cáñamo, o Cannabis sativa, se ha dicho que es el mejor aliado que tiene el hombre en el mundo vegetal. Se ha venerado como fuente de iluminación espiritual y sustento de la vida humana. Hasta hace poco, el asombroso pasado del cáñamo estaba prácticamente olvidado.En un tiempo estuvo en los cimientos de la economía de la civilización y apenas en el siglo XX se volvió ilegal. Pero ha regresado; Europa y Canadá ya han levantando la prohibición del cultivar cáñamo industrial y lo han introducido al mercado en un asombroso despliegue de productos: desde jeans hasta playeras, bálsamo labial, papel no hecho de árbol, tablas de fibra y aislantes. Con la nueva tecnología, se puede hacer de cáñamo todo lo que se fabrica con petróleo, incluyendo pintura, plásticos y energía de biomasa.En esta guía amplia e ilustrada, Rowan Robinson muestra la historia oculta del cáñamo: examina su rol como primer cultivo de fibra, su papel en el hinduismo y en otras religiones, y su función como catalizador de la revolución cultural de los años 60. Robinson también expone los prejuicions que desencadenó y la histeria que ha venido provocando la mariguana durante los últimos 50 años. Robinson cita los estudios contemporáneos y la sabiduría antigua, y efectúa un amplio análisis de los usos alimenticios y medicinales del cáñamo, y su sorprendente potencial para resolver algunos de los más perturbadores problemas ambientales del mundo, como la erosión y la contaminación del suelo, o la deforestación. El gran libro del cannabis es una guía completa de la planta más extraordinaria del mundo.