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The Nature of Earth: An Introduction to Geology (Transcript)
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About this ebook
The Nature of Earth: An Introduction to Geology is the companion book to the audio/video series of the same name. It contains a full transcript of the series as well as the complete course guidebook which includes lecture notes, bibliography, and more.
About this series:
The force of gravity rules the universe. It governs our everyday lives on Earth and it controls the motions of the heavens above. Yet it is one of the least understood of all the forces of nature.
To endeavor to understand this fundamental force is to experience anew something as simple as getting out of bed, throwing a ball, or diving into a pool; and it gives deep insight into the central organizing principle of the cosmos.
Consider these crucial aspects of gravity:
Gravity governs the rising and falling of tides—not only tides in the ocean, but tides in the solid rock of Earth itself.
Gravity molds the sun and planets into spheres, and it holds celestial objects in their orbits.
Gravity ignites the nuclear fires inside each star, then fights a billion-year battle to determine its fate.
Gravity collects stars into galaxies and causes galaxies to collide in intricate mergers that we can model with supercomputers.
Without gravity, everything would dissolve into a gas of randomly interacting atoms. It is the only truly universal force, affecting not just matter but also light, time, and, at a basic level, all information. The study of gravity helped spark the Scientific Revolution in the 17th century, and it continues to be at the forefront of physics today, as scientists rely on gravity to investigate otherwise inaccessible phenomena such as dark matter and dark energy. An understanding of gravity—what it is, how it works, and why it is the most dominant and puzzling force in the universe—is both endlessly fascinating and accessible to any curious person, regardless of his or her science education.
Black Holes, Tides, and Curved Spacetime: Understanding Gravity plunges you into this compelling subject in 24 intensively illustrated half-hour lectures, presented by Professor Benjamin Schumacher of Kenyon College. Professor Schumacher is an award-winning teacher, a prominent theoretical physicist, and a protégé of John Archibald Wheeler, the distinguished gravity theorist who first coined the term “black hole.”
No book or other comparable product exists that presents gravity in such comprehensible detail as this course, which covers the key ideas in gravity research over the past 400 years and gives you the background to understand today’s path-breaking theories in physics. Professor Schumacher even walks you through some of the fundamental equations in the field, such as Isaac Newton’s law of universal gravitation and Albert Einstein’s equation governing the curvature of spacetime by matter, giving you a firsthand look at the power of these mathematical expressions to explain reality—plus further opportunities to explore them with the course guidebook.
It All Started with an Apple
The course opens with Newton’s famous apple, which fell from a tree and inspired a revolutionary idea. Newton realized that the force of gravity that acts on an apple near the surface of Earth also extends to the faraway moon, keeping it in its orbit around Earth; similarly, Earth and the other planets are held in orbit around the sun by its gravity, and so on with all the stars and planets throughout the cosmos.
You learn how Newton built on the earlier work of Galileo Galilei and Johannes Kepler to formulate his celebrated law of universal gravitation, which governs the analysis of practically all motion—on Earth and in the heavens. In the first half of the course, you cover the many implications of this spectacular achievement. In the second half, you see how Einstein’s general theory of relativity solved long-standing mysteries of Newton’s theory and advanced an entirely new picture of gravity as a field. The simple reasoning that led Einstein to his extraordinary conclus
About this series:
The force of gravity rules the universe. It governs our everyday lives on Earth and it controls the motions of the heavens above. Yet it is one of the least understood of all the forces of nature.
To endeavor to understand this fundamental force is to experience anew something as simple as getting out of bed, throwing a ball, or diving into a pool; and it gives deep insight into the central organizing principle of the cosmos.
Consider these crucial aspects of gravity:
Gravity governs the rising and falling of tides—not only tides in the ocean, but tides in the solid rock of Earth itself.
Gravity molds the sun and planets into spheres, and it holds celestial objects in their orbits.
Gravity ignites the nuclear fires inside each star, then fights a billion-year battle to determine its fate.
Gravity collects stars into galaxies and causes galaxies to collide in intricate mergers that we can model with supercomputers.
Without gravity, everything would dissolve into a gas of randomly interacting atoms. It is the only truly universal force, affecting not just matter but also light, time, and, at a basic level, all information. The study of gravity helped spark the Scientific Revolution in the 17th century, and it continues to be at the forefront of physics today, as scientists rely on gravity to investigate otherwise inaccessible phenomena such as dark matter and dark energy. An understanding of gravity—what it is, how it works, and why it is the most dominant and puzzling force in the universe—is both endlessly fascinating and accessible to any curious person, regardless of his or her science education.
Black Holes, Tides, and Curved Spacetime: Understanding Gravity plunges you into this compelling subject in 24 intensively illustrated half-hour lectures, presented by Professor Benjamin Schumacher of Kenyon College. Professor Schumacher is an award-winning teacher, a prominent theoretical physicist, and a protégé of John Archibald Wheeler, the distinguished gravity theorist who first coined the term “black hole.”
No book or other comparable product exists that presents gravity in such comprehensible detail as this course, which covers the key ideas in gravity research over the past 400 years and gives you the background to understand today’s path-breaking theories in physics. Professor Schumacher even walks you through some of the fundamental equations in the field, such as Isaac Newton’s law of universal gravitation and Albert Einstein’s equation governing the curvature of spacetime by matter, giving you a firsthand look at the power of these mathematical expressions to explain reality—plus further opportunities to explore them with the course guidebook.
It All Started with an Apple
The course opens with Newton’s famous apple, which fell from a tree and inspired a revolutionary idea. Newton realized that the force of gravity that acts on an apple near the surface of Earth also extends to the faraway moon, keeping it in its orbit around Earth; similarly, Earth and the other planets are held in orbit around the sun by its gravity, and so on with all the stars and planets throughout the cosmos.
You learn how Newton built on the earlier work of Galileo Galilei and Johannes Kepler to formulate his celebrated law of universal gravitation, which governs the analysis of practically all motion—on Earth and in the heavens. In the first half of the course, you cover the many implications of this spectacular achievement. In the second half, you see how Einstein’s general theory of relativity solved long-standing mysteries of Newton’s theory and advanced an entirely new picture of gravity as a field. The simple reasoning that led Einstein to his extraordinary conclus
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The Nature of Earth - John J. Renton
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