What You’ll Discover in Black Holes, Tides, and Curved Spacetime Understanding Gravity
Gravity is unimaginably weak—a million, trillion, trillion, trillion times weaker than the electromagnetic force that attracts electrons to protons… File Size: 5.76GB
Black Holes, Tides, and Curved Spacetime – Understanding Gravity
The universe is controlled by the force gravity. It rules our daily lives here on Earth and It is responsible for controlling the motions in the heavens. It is among the most mysterious of all the forces in nature. This fundamental force can be experienced as a new experience, such as getting out from bed, throwing a football, or diving in a pool. and It gives insight into the core organizing principle of all things.
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These are some of the most crucial aspects to gravity:
Gravity This governs the rising and falling of tides—not only tides in the ocean, but tides in the solid rock of Earth itself.
Gravity The sun molds and Transform planets into globes and It holds celestial objects within their orbits.
Gravity Inflammes the nuclear fires in each star and then fights a half a billion-Its fate will be decided by the year.
Gravity Collects stars to form galaxies and Cause galaxies collide in complex mergers that can be modelled with supercomputers
Everything would disintegrate into a mixture of randomly interconnected atoms without gravity. It is the only true universal force. It affects not just matter, but also light, and time. andAll information can be understood at a fundamental level. The Scientific Revolution was ignited by the discovery of gravity in the 17th Century. and It continues to be at forefront of physics as scientists rely upon gravity to study otherwise inaccessible phenomena, such as dark matter. and dark energy. An understanding of gravity—what it is, how it works, and Why it is so dominant and puzzling force in the universe—is both endlessly fascinating and Regardless of science education, anyone can access them.
Black Holes, Tides, and Curved Spacetime: Understanding Gravity This compelling subject is delved into in 24 illustrated halves-Professor Benjamin Schumacher, Kenyon College, presents hour-long lectures. Professor Schumacher has been awarded the prestigious “Best Lecturer” award-A prominent theoretical physicist and winner teacher. and a protégé of John Archibald Wheeler, the distinguished gravity theorist who first coined the term “black hole.”
This course is unlike any other similar product, and presents gravity in such clear detail. It covers all the major ideas in gravity research over 400 years. and gives you the background to understand today’s path-Breaking down physics theories. 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 began with an Apple
The course opens with Newton’s famous apple, which fell from a tree and A revolutionary idea inspired Newton. Newton discovered that the force that gravity exerts on an apple close to Earth’s surface also acts on the faraway moon. This keeps it in orbit around Earth. and The sun’s gravity holds the other planets in orbit around it. and Continue with all the stars and There are many planets in the cosmos.
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This video explains how Newton built on Galileo Galilei’s earlier work. 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. The first half of the course explains the implications of this remarkable achievement. In the second half, you see how Einstein’s general theory of relativity solved long-standing mysteries of Newton’s theory and The new definition of gravity as an entity was created. The simple reasoning that led Einstein to his extraordinary conclusions is thrilling to follow in Professor Schumacher’s elegant presentation.
You will be equally amazed at the amazing features of gravity you discover, such as these:
Gravity is unimaginably weak—a million, trillion, trillion, trillion times weaker than the electromagnetic force that attracts electrons to protons and Holds atoms together. This raises the question: Can weak gravity prevail over all other forces?
Galileo was first to note that objects of different mass fall at the same speed. Neglecting air resistance, a heavier object does not fall faster than a lighter one—a principle famously demonstrated by an astronaut on the moon with a hammer and A feather.
Space astronauts are not in a weightless state. This is due to gravity, which is nearly as strong on low Earth orbit as on the ground. Space travelers are in free fall and experience zero gravity.
Einstein says that gravity is not really a force. It is a warping between the four-Spacetime is the dimensional fabric of spacetime. A geodesic, a body falling only due to gravity, follows the most efficient path in curvilinear spacetime.
From Black Holes to Expanding Universe
Gravitation is a complex phenomenon, but it can also be explained by simple experiments that reveal its unique properties. Professor Schumacher engages in engaging in-Demonstrations in the studio that illustrate how scientists study gravitation. Our knowledge of gravity has advanced from Galileo’s investigation of falling objects, to Henry Cavendish’s determination of the all-important gravitational constant, to Arthur Eddington’s proof that light bends as it passes near the sun, to today’s search for the almost infinitely subtle signature of gravitational waves. These lectures are filled with impressive animations and information graphics that bring this fascinating research to life.
This course also brings you to one of the most incredible predictions of Einstein’s general theory of relativity: black holes. Learn how Einstein’s theory describes deformed regions of spacetime that are completely cut off from the rest of the universe. But are they? Professor Schumacher demonstrates how Stephen Hawking’s physicists work. and Jacob Bekenstein discovered a surprising exception to the rule about black holes, which has profound implications in relation to the universe.
Another outcome of Einstein’s equations holds that the universe should be expanding, as Edwin Hubble discovered it is in the 1920s. Recent research has shown that this expansion is being accelerated by an asteroidal effect.-Yet-Unexplained dark energy, also known as cosmic antigravity. There are other mysteries. You also explore the Holy Grail in contemporary physics: The search for a theory that includes both gravity, and which extends its reach beyond the cosmos. and Quantum mechanics is a system that governs events on the smallest scale.
In Black Holes, Tides, and Curved SpacetimeProfessor Schumacher takes students to the very edge of contemporary physics and explores several groundbreaking theories. It’s one of the many ways that you learn how gravity research is no less exciting today as it was when Isaac Newton sat near an apple tree and It was a great idea.
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