North Pole, South Pole

North Pole, South Pole

Author: Gillian Turner

Publisher: The Experiment

Published: 2011-01-11

Total Pages: 326

ISBN-13: 1615191321

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This “fantastic story” of one of physics’ great riddles takes us through centuries of scientific history (Simon Lamb, author of Devil in the Mountain). Why do compass needles point north—but not quite north? What guides the migration of birds, whales, and fish across the world’s oceans? How is Earth able to sustain life under an onslaught of solar wind and cosmic radiation? For centuries, the world’s great scientists have grappled with these questions, all rooted in the same phenomenon: Earth’s magnetism. Over two thousand years after the invention of the compass, Einstein called the source of Earth’s magnetic field one of greatest unsolved mysteries of physics. Here, for the first time, is the complete history of the quest to understand the planet’s attractive pull—from the ancient Greeks’ fascination with lodestone to the geological discovery that the North Pole has not always been in the North—and to the astonishing modern conclusions that finally revealed the true source. Richly illustrated and skillfully told, North Pole, South Pole unfolds the human story behind the science: that of the inquisitive, persevering, and often dissenting thinkers who unlocked the secrets at our planet’s core. “In recent years, many very good books for interested non-scientists have been published: Richard Dawkins’s Climbing Mount Improbable and The Ancestor’s Tale, Stephen Jay Gould’s The Lying Stones of Marrakech, and Dava Sobel’s Longitude and The Planets, to name some of them. North Pole, South Pole . . . is a worthy addition to that list . . . Turner has a great story to tell, and she tells it well.” —The Press (New Zealand)


Book Synopsis North Pole, South Pole by : Gillian Turner

Download or read book North Pole, South Pole written by Gillian Turner and published by The Experiment. This book was released on 2011-01-11 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This “fantastic story” of one of physics’ great riddles takes us through centuries of scientific history (Simon Lamb, author of Devil in the Mountain). Why do compass needles point north—but not quite north? What guides the migration of birds, whales, and fish across the world’s oceans? How is Earth able to sustain life under an onslaught of solar wind and cosmic radiation? For centuries, the world’s great scientists have grappled with these questions, all rooted in the same phenomenon: Earth’s magnetism. Over two thousand years after the invention of the compass, Einstein called the source of Earth’s magnetic field one of greatest unsolved mysteries of physics. Here, for the first time, is the complete history of the quest to understand the planet’s attractive pull—from the ancient Greeks’ fascination with lodestone to the geological discovery that the North Pole has not always been in the North—and to the astonishing modern conclusions that finally revealed the true source. Richly illustrated and skillfully told, North Pole, South Pole unfolds the human story behind the science: that of the inquisitive, persevering, and often dissenting thinkers who unlocked the secrets at our planet’s core. “In recent years, many very good books for interested non-scientists have been published: Richard Dawkins’s Climbing Mount Improbable and The Ancestor’s Tale, Stephen Jay Gould’s The Lying Stones of Marrakech, and Dava Sobel’s Longitude and The Planets, to name some of them. North Pole, South Pole . . . is a worthy addition to that list . . . Turner has a great story to tell, and she tells it well.” —The Press (New Zealand)


De Magnete

De Magnete

Author: William Gilbert

Publisher: Courier Corporation

Published: 2013-01-31

Total Pages: 427

ISBN-13: 0486163016

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From the first great experimental scientist: the classic text, first published in Latin in 1600. Summarizes then-current knowledge of magnetism and electricity, offering insights into the origins of modern science.


Book Synopsis De Magnete by : William Gilbert

Download or read book De Magnete written by William Gilbert and published by Courier Corporation. This book was released on 2013-01-31 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the first great experimental scientist: the classic text, first published in Latin in 1600. Summarizes then-current knowledge of magnetism and electricity, offering insights into the origins of modern science.


The Earth a Great Magnet

The Earth a Great Magnet

Author: Alfred Marshall Mayer

Publisher:

Published: 1872

Total Pages: 84

ISBN-13:

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Book Synopsis The Earth a Great Magnet by : Alfred Marshall Mayer

Download or read book The Earth a Great Magnet written by Alfred Marshall Mayer and published by . This book was released on 1872 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:


Our Magnetic Earth

Our Magnetic Earth

Author: Ronald T. Merrill

Publisher: University of Chicago Press

Published: 2011-01-15

Total Pages: 272

ISBN-13: 0226520536

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For the general public, magnetism often seems more the province of new age quacks, movie mad scientists, and grade-school teachers than an area of actual, ongoing scientific inquiry. But as Ronald T. Merrill reveals in Our Magnetic Earth, geomagnetism really is an enduring, vibrant area of science, one that offers answers to some of the biggest questions about our planet’s past—and maybe even its future.


Book Synopsis Our Magnetic Earth by : Ronald T. Merrill

Download or read book Our Magnetic Earth written by Ronald T. Merrill and published by University of Chicago Press. This book was released on 2011-01-15 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the general public, magnetism often seems more the province of new age quacks, movie mad scientists, and grade-school teachers than an area of actual, ongoing scientific inquiry. But as Ronald T. Merrill reveals in Our Magnetic Earth, geomagnetism really is an enduring, vibrant area of science, one that offers answers to some of the biggest questions about our planet’s past—and maybe even its future.


The Spinning Magnet

The Spinning Magnet

Author: Alanna Mitchell

Publisher: Penguin

Published: 2018-01-30

Total Pages: 336

ISBN-13: 1101985186

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The mystery of Earth's invisible, life-supporting power Alanna Mitchell's globe-trotting history of the science of electromagnetism and the Earth's magnetic field--right up to the latest indications that the North and South Poles may soon reverse, with apocalyptic results--will soon change the way you think about our planet. Award-winning journalist Alanna Mitchell's science storytelling introduce intriguing characters--from the thirteenth-century French investigations into magnetism and the Victorian-era discover that electricity and magnetism emerge from the same fundamental force to the latest research. No one has ever told so eloquently how the Earth itself came to be seen as a magnet, spinning in space with two poles, and that those poles have dramatically reversed many time, often coinciding with mass extinctions. The most recent reversal was 780,000 years ago. Mitchell explores indications that the Earth's magnetic force field is decaying faster than previously thought. When the poles switch, a process that takes many years, the Earth is unprotected from solar radiation storms that would, among other disturbances, wipe out much and possible all of our electromagnetic technology. Navigation for all kinds of animals is disrupted without a stable, magnetic North Pole. But can you imagine no satellites, no Internet, no smartphones--maybe no power grids at all? Alanna Mitchell offers a beautifully crafted narrative history of surprising ideas and science, illuminating invisible parts of our own planet that are constantly changing around us.


Book Synopsis The Spinning Magnet by : Alanna Mitchell

Download or read book The Spinning Magnet written by Alanna Mitchell and published by Penguin. This book was released on 2018-01-30 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mystery of Earth's invisible, life-supporting power Alanna Mitchell's globe-trotting history of the science of electromagnetism and the Earth's magnetic field--right up to the latest indications that the North and South Poles may soon reverse, with apocalyptic results--will soon change the way you think about our planet. Award-winning journalist Alanna Mitchell's science storytelling introduce intriguing characters--from the thirteenth-century French investigations into magnetism and the Victorian-era discover that electricity and magnetism emerge from the same fundamental force to the latest research. No one has ever told so eloquently how the Earth itself came to be seen as a magnet, spinning in space with two poles, and that those poles have dramatically reversed many time, often coinciding with mass extinctions. The most recent reversal was 780,000 years ago. Mitchell explores indications that the Earth's magnetic force field is decaying faster than previously thought. When the poles switch, a process that takes many years, the Earth is unprotected from solar radiation storms that would, among other disturbances, wipe out much and possible all of our electromagnetic technology. Navigation for all kinds of animals is disrupted without a stable, magnetic North Pole. But can you imagine no satellites, no Internet, no smartphones--maybe no power grids at all? Alanna Mitchell offers a beautifully crafted narrative history of surprising ideas and science, illuminating invisible parts of our own planet that are constantly changing around us.


The Great Earth Magnet

The Great Earth Magnet

Author: Gillian Turner

Publisher: Pacific Learning Inc

Published: 2011

Total Pages: 17

ISBN-13: 1604578858

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Without Earth's magnetic field, it would be impossible for us to live. So what creates Earth's magnetism - this amazing force of nature to which we owe our lives?


Book Synopsis The Great Earth Magnet by : Gillian Turner

Download or read book The Great Earth Magnet written by Gillian Turner and published by Pacific Learning Inc. This book was released on 2011 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Without Earth's magnetic field, it would be impossible for us to live. So what creates Earth's magnetism - this amazing force of nature to which we owe our lives?


The Earth a Great Magnet

The Earth a Great Magnet

Author: Alfred Marshall Mayer

Publisher:

Published: 1872

Total Pages: 96

ISBN-13:

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Book Synopsis The Earth a Great Magnet by : Alfred Marshall Mayer

Download or read book The Earth a Great Magnet written by Alfred Marshall Mayer and published by . This book was released on 1872 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:


Earth's Magnetic Field Secrets

Earth's Magnetic Field Secrets

Author: Dennis Brooks

Publisher: Speedy Publishing LLC

Published: 2015-03-04

Total Pages: 55

ISBN-13: 168127485X

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The Old Theory Until now, there was only one theory regarding the source of Earth's magnetic field, which is the internal dynamo theory. This theory was accepted because it offered the best explanation at the time. Also, much research has been done to support the theory. According to the internal dynamo theory, a dynamo near the center of the planet generates the current that produces the magnetic field. This dynamo would be in the liquid outer core of the planet. It would produce the magnetic axis and project it from the planet. The axis would expand and spread the magnetic field around the planet. This theory also suggests that the internal dynamo is sustaining itself by using fuel from Earth's core. The internal dynamo theory has changed over the years. At first scientists thought that a bar magnet was in the center of the planet and the compass needle pointed to the poles of that magnet. This made perfect sense at the time because we can see that the same thing happens when we put a compass near a bar magnet. The Bar Magnet In The Sun image demonstrates the idea of the bar magnet theory. However, this example shows the bar magnet imbedded within the sun because just like the planets, the sun also has a magnetic field, which is more complex than Earth's magnetic field. Scientists have tried to use the internal dynamo theory to explain the magnetic fields of all the planets, some moons, and the sun. However, the old model does not work for the sun, moon, and other planets. The bar magnet concept lasted a long time as the main theory regarding the source of Earth's magnetic field. However, while trying to apply it to other cases, scientists found problems with the theory. Over the years, they discovered that a bar magnet could not hold magnetism above the temperature of 770 degrees centigrade because high heat destroys magnetism. This caused the theory to gradually evolve over time.


Book Synopsis Earth's Magnetic Field Secrets by : Dennis Brooks

Download or read book Earth's Magnetic Field Secrets written by Dennis Brooks and published by Speedy Publishing LLC. This book was released on 2015-03-04 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Old Theory Until now, there was only one theory regarding the source of Earth's magnetic field, which is the internal dynamo theory. This theory was accepted because it offered the best explanation at the time. Also, much research has been done to support the theory. According to the internal dynamo theory, a dynamo near the center of the planet generates the current that produces the magnetic field. This dynamo would be in the liquid outer core of the planet. It would produce the magnetic axis and project it from the planet. The axis would expand and spread the magnetic field around the planet. This theory also suggests that the internal dynamo is sustaining itself by using fuel from Earth's core. The internal dynamo theory has changed over the years. At first scientists thought that a bar magnet was in the center of the planet and the compass needle pointed to the poles of that magnet. This made perfect sense at the time because we can see that the same thing happens when we put a compass near a bar magnet. The Bar Magnet In The Sun image demonstrates the idea of the bar magnet theory. However, this example shows the bar magnet imbedded within the sun because just like the planets, the sun also has a magnetic field, which is more complex than Earth's magnetic field. Scientists have tried to use the internal dynamo theory to explain the magnetic fields of all the planets, some moons, and the sun. However, the old model does not work for the sun, moon, and other planets. The bar magnet concept lasted a long time as the main theory regarding the source of Earth's magnetic field. However, while trying to apply it to other cases, scientists found problems with the theory. Over the years, they discovered that a bar magnet could not hold magnetism above the temperature of 770 degrees centigrade because high heat destroys magnetism. This caused the theory to gradually evolve over time.


The Earth a Great Magnet; a Lecture Delivered Before the Yale Scientific Club, February 14,1872

The Earth a Great Magnet; a Lecture Delivered Before the Yale Scientific Club, February 14,1872

Author: Alfred Marshall Mayer

Publisher: Theclassics.Us

Published: 2013-09

Total Pages: 24

ISBN-13: 9781230440873

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1872 edition. Excerpt: ... the earth A great magnet. A lecture by prof. A. M. ma yer, P/i.D. At the invitation of the Yale Scientific Club, I have the honor to appear before you to deliver a lecture on Magnetism--a subject to which I have given several years of devoted study. Confused by the multiplicity of the facts of this science, and embarrassed by the grandeur of its generalizations, I have resolved to do, what every public lecturer must do who would confer on his hearers any greater benefit than mere temporary amusement and that is, to select from this subject one prominent truth, and to present this to you in simple and striking experiments; but, so to describe and logically connect these experiments as clearly and forcibly to bring the truth before your minds and fix it there. That this method of procedure is necessary, will be evident when you consider that over one hundred men of the highest ability, as original investigators, have toiled, on an average of ten years each, at these problems of magnetism; thus making an aggregate of one thousand years of successful search in the rich mine of natural truth. From this vast accumulation of fact and of theory I s select as my text words given to the world over 270 years ago by Dr. William Gilbert, the physician to Queen Elizabeth. In the year 1600 Gilbert published a work entitled "De Magnete," or, "on the Magnet" (1). In this book I found my text, and thus it reads: "Magnus magnes ipse est globus terrestris," which being interpreted is, " the earth itself is a great magnet." Those who will examine this remarkable book of science cannot fail to observe how skillfully Gilbert handles the experimental or inductive method of research in arriving at the facts and the laws of magnetism; and if he cannot be style


Book Synopsis The Earth a Great Magnet; a Lecture Delivered Before the Yale Scientific Club, February 14,1872 by : Alfred Marshall Mayer

Download or read book The Earth a Great Magnet; a Lecture Delivered Before the Yale Scientific Club, February 14,1872 written by Alfred Marshall Mayer and published by Theclassics.Us. This book was released on 2013-09 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1872 edition. Excerpt: ... the earth A great magnet. A lecture by prof. A. M. ma yer, P/i.D. At the invitation of the Yale Scientific Club, I have the honor to appear before you to deliver a lecture on Magnetism--a subject to which I have given several years of devoted study. Confused by the multiplicity of the facts of this science, and embarrassed by the grandeur of its generalizations, I have resolved to do, what every public lecturer must do who would confer on his hearers any greater benefit than mere temporary amusement and that is, to select from this subject one prominent truth, and to present this to you in simple and striking experiments; but, so to describe and logically connect these experiments as clearly and forcibly to bring the truth before your minds and fix it there. That this method of procedure is necessary, will be evident when you consider that over one hundred men of the highest ability, as original investigators, have toiled, on an average of ten years each, at these problems of magnetism; thus making an aggregate of one thousand years of successful search in the rich mine of natural truth. From this vast accumulation of fact and of theory I s select as my text words given to the world over 270 years ago by Dr. William Gilbert, the physician to Queen Elizabeth. In the year 1600 Gilbert published a work entitled "De Magnete," or, "on the Magnet" (1). In this book I found my text, and thus it reads: "Magnus magnes ipse est globus terrestris," which being interpreted is, " the earth itself is a great magnet." Those who will examine this remarkable book of science cannot fail to observe how skillfully Gilbert handles the experimental or inductive method of research in arriving at the facts and the laws of magnetism; and if he cannot be style


The Earth's Magnetic Field : Its History, Origin, and Planetary Perspective

The Earth's Magnetic Field : Its History, Origin, and Planetary Perspective

Author: McElhinny

Publisher: Academic Press

Published: 1984-01-04

Total Pages: 400

ISBN-13: 0080954634

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The Earth's Magnetic Field : Its History, Origin, and Planetary Perspective


Book Synopsis The Earth's Magnetic Field : Its History, Origin, and Planetary Perspective by : McElhinny

Download or read book The Earth's Magnetic Field : Its History, Origin, and Planetary Perspective written by McElhinny and published by Academic Press. This book was released on 1984-01-04 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Earth's Magnetic Field : Its History, Origin, and Planetary Perspective