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Author: J. D. Macdougall
Publisher: Univ of California Press
ISBN: 0520261615
Category : Nature
Languages : en
Pages : 284
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Book Description
"A lucid and engaging account of the scientific revolution that changed the way we think about our planet and ourselves."—James Lawrence Powell, author of Grand Canyon and Mysteries of Terra Firma
Author: J. D. Macdougall
Publisher: Univ of California Press
ISBN: 0520261615
Category : Nature
Languages : en
Pages : 284
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Book Description
"A lucid and engaging account of the scientific revolution that changed the way we think about our planet and ourselves."—James Lawrence Powell, author of Grand Canyon and Mysteries of Terra Firma
Author: Doug Macdougall
Publisher: Univ of California Press
ISBN: 0520933443
Category : Science
Languages : en
Pages : 285
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Book Description
"Radioactivity is like a clock that never needs adjusting," writes Doug Macdougall. "It would be hard to design a more reliable timekeeper." In Nature's Clocks, Macdougall tells how scientists who were seeking to understand the past arrived at the ingenious techniques they now use to determine the age of objects and organisms. By examining radiocarbon (C-14) dating—the best known of these methods—and several other techniques that geologists use to decode the distant past, Macdougall unwraps the last century's advances, explaining how they reveal the age of our fossil ancestors such as "Lucy," the timing of the dinosaurs' extinction, and the precise ages of tiny mineral grains that date from the beginning of the earth's history. In lively and accessible prose, he describes how the science of geochronology has developed and flourished. Relating these advances through the stories of the scientists themselves—James Hutton, William Smith, Arthur Holmes, Ernest Rutherford, Willard Libby, and Clair Patterson—Macdougall shows how they used ingenuity and inspiration to construct one of modern science's most significant accomplishments: a timescale for the earth's evolution and human prehistory.
Author: James Jespersen
Publisher: Courier Corporation
ISBN: 0486409139
Category : Science
Languages : en
Pages : 322
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Book Description
Clear and accessible introduction to the concept of time examines measurement, historic timekeeping methods, uses of time information, role of time in science and technology, and much more. Over 300 illustrations.
Author: Geoff McNamara
Publisher: Springer Science & Business Media
ISBN: 038776562X
Category : Science
Languages : en
Pages : 192
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Book Description
Pulsars are rapidly spinning neutron stars, the collapsed cores of once massive stars that ended their lives as supernova explosions. In this book, Geoff McNamara explores the history, subsequent discovery and contemporary research into pulsar astronomy. The story of pulsars is brought right up to date with the announcement in 2006 of a new breed of pulsar, Rotating Radio Transients (RRATs), which emit short bursts of radio signals separated by long pauses. These may outnumber conventional radio pulsars by a ratio of four to one. Geoff McNamara ends by pointing out that, despite the enormous success of pulsar research in the second half of the twentieth century, the real discoveries are yet to be made including, perhaps, the detection of the hypothetical pulsar black hole binary system by the proposed Square Kilometre Array - the largest single radio telescope in the world.
Author: Robynne Eagan
Publisher: Lorenz Educational Press
ISBN: 0787784400
Category :
Languages : en
Pages : 148
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Book Description
Help children measure and tell time by the sun, the clock and the calendar; and learn why there are 24 hours in a day, 7 days in a week and 365 days in a year. Here's a cross-curriculum approach to time with learning activities that bring together history, science, language arts and math. A comprehensive look at time from the ancient civilizations who first tried to understand, arrange and measure it - to modern society where we organize our lives around the clock!
Author: Amita Sehgal
Publisher: John Wiley & Sons
ISBN: 9780471418245
Category : Science
Languages : en
Pages : 302
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Book Description
This text begins with a general introduction to biochemical and biophysical aspects of circadian timing, then proceeds to its essential focus on collating the newest information on molecular mechanisms of circadian rhythms. It includes a chapter on the implications for clinical research on affective disorders, sleep disorders, and the relevance for therapeutic treatment, as well as coverage of multiple oscillators and hormonal rhythms. Sections include: Molecular Control of Circadian Rhythms: Animal Models Molecular Control of Circadian Rhythms: From Cyanobacteria to Plants Circadian Organization in Complex Organisms. Chapter topics include examinations of circadian rhythms in non-mammalian vertebrates, neurospora, and humans.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 844
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Book Description
Author: Joseph Daniele
Publisher: Stackpole Books
ISBN: 9780811722322
Category : Art
Languages : en
Pages : 198
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Book Description
Includes the four basic types of clocks---plaque, shelf, wall, and tall case clocks. Plans, drawings, and photos included.
Author: Sir Norman Lockyer
Publisher:
ISBN:
Category : Electronic journals
Languages : en
Pages : 626
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Book Description
Author: Tristan Gooley
Publisher: The Experiment
ISBN: 1615195912
Category : Nature
Languages : en
Pages : 384
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Book Description
From the New York Times-bestselling author of The Secret World of Weather and The Lost Art of Reading Nature’s Signs, learn to notice nature’s hidden clues all around you “A captivating guide to finding one’s way in the wild.”—The Wall Street Journal Publisher's note: The Nature Instinct was published in the UK under the title Wild Signs and Star Paths. Master outdoorsman Tristan Gooley was just about to make camp when he sensed danger—but couldn’t say why. After sheltering elsewhere, Gooley returned to investigate: What had set off his subconscious alarm? Suddenly, he understood: All of the tree trunks were slightly bent. The ground had already shifted once and could easily become treacherous in a storm. The Nature Instinct shows how we, too, can unlock this intuitive understanding of our surroundings. Learn to sense the forest’s edge from deep in the woods, or whether a wild animal might pose danger—before you even know how you know.
