Gravity is unimaginably weak—a million, trillion, trillion, trillion times weaker than the electromagnetic force that attracts electrons to protons File size: 5.76 GB
Black Holes, Tides, and Curved Spacetime – Understanding Gravity
The universe is controlled by the force gravity. It is the force that governs our daily lives on Earth. and It is responsible for controlling the motions in the heavens. Yet, it is one the most obscure of all the forces that govern 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 deep insight into what the central organizing principle is of the cosmos.
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These are some of the most crucial aspects to gravity:
Gravity The rising of the prices 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 houses celestial objects in orbits.
Gravity Then, he ignites the nuclear fires within each star and fights a million-Its fate will be decided by the year.
Gravity Collects stars to form galaxies and Complex mergers can occur when galaxies collide. These complex mergers are possible to model with supercomputers.
Everything would be dissolved into a gas composed of randomly interconnected particles without gravity. It is the only universal force that affects not just matter, but light and time. andAll information is available at the basic level. The Scientific Revolution was ignited by the discovery of gravity in the 17th Century. and It is still at the forefront in physics today as scientists continue to rely on gravity for investigations into otherwise obscure phenomena like 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 Accessible to all curious people, regardless of their science education.
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 is an Award-winning Lecturer-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.”
There is no comparable book or product that presents gravity as clearly and concisely as this course. This course covers the most important ideas in gravity research for the past 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 This idea was revolutionary. Newton saw that the force acting on an apple at the Earth’s surface, gravity also affects the distant moon. It keeps Earth in its orbit. 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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Learn how Newton built upon the earlier work by Galileo Galilei and Johannes Kepler to formulate his celebrated law of universal gravitation, which governs the analysis of practically all motion—on Earth and You are 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 A new view of gravity as a field was presented. The simple reasoning that led Einstein to his extraordinary conclusions is thrilling to follow in Professor Schumacher’s elegant presentation.
These are just a few of the many surprising aspects of gravity you can discover.
Gravity is unimaginably weak—a million, trillion, trillion, trillion times weaker than the electromagnetic force that attracts electrons to protons and Holds the atoms together. This raises the question: Can weak gravity prevail over all other forces?
Galileo was first to note that objects with different masses fall at equal rates. 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 it can be on the ground. Space travelers are free to fall and experience zero gravity.
Einstein says that gravity is not really a force. It is the warping of four forces.-The universe’s dimensional fabric, spacetime. A falling body is only guided by gravity and follows the most efficient path in curvilinear spacetime. This is called a geodesic.
From Black Holes to Expanding Universe
Although gravity can be a puzzle, it can also be a phenomena that lends itself easily to experiments that shed light on its unique properties. Professor Schumacher is an 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. This exciting research is brought to life in the lectures with stunning animations and informative graphics.
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. Are they? Professor Schumacher shows you how Stephen Hawking is interpreted by physicists and Jacob Bekenstein discovered a fascinating exception to the rule regarding black holes. This has profound implications for our universe.
Another outcome of Einstein’s equations holds that the universe should be expanding, as Edwin Hubble discovered it is in the 1920s. Astronomers discovered that the expansion is increasing due to an asschermograph.-Yet-Dark energy is an unexplained form of 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 dark energy, which extends its reach into the cosmos. and Quantum mechanics governs events at the smallest scale possible.
In Black Holes, Tides, and Curved SpacetimeProfessor Schumacher takes students to the very edge of modern 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 A brilliant idea.
Course Features
- Lectures 0
- Quizzes 0
- Duration Lifetime access
- Skill level All levels
- Students 155
- Assessments Yes