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Ημερομηνία προβολής
Ιαν 01, 2006
Professor Pollock opens the course with an overview of the domain of classical physics: forces and motion, matter and energy, space and time, and particles and waves.
Professor Pollock opens the course with an overview of the domain of classical physics: forces and motion, matter and energy, space and time, and particles and waves.
Ημερομηνία προβολής
Ιαν 01, 2006
Greek natural philosophers made enormous progress 2,000 years ago but missed something essential in their analysis of nature - the scientific method. This lecture examines Galileo's challenge to ancient ideas.
Greek natural philosophers made enormous progress 2,000 years ago but missed something essential in their analysis of nature - the scientific method. This lecture examines Galileo's challenge to ancient ideas.
Ημερομηνία προβολής
Ιαν 01, 2006
Galileo's study of marbles rolling down ramps led to a distinction between velocity and acceleration. Acceleration is one of the paradigmatic ideas in physics, relating to the concept of rate of change.
Galileo's study of marbles rolling down ramps led to a distinction between velocity and acceleration. Acceleration is one of the paradigmatic ideas in physics, relating to the concept of rate of change.
Ημερομηνία προβολής
Ιαν 01, 2006
Speculations on Earth's place in the universe, the nature of planets, and the structure of the solar system were at the heart of the development of classical physics. This lecture looks at the work of Copernicus, Kepler, and Galileo.
Speculations on Earth's place in the universe, the nature of planets, and the structure of the solar system were at the heart of the development of classical physics. This lecture looks at the work of Copernicus, Kepler, and Galileo.
Ημερομηνία προβολής
Ιαν 01, 2006
The turning point in the development of classical physics traces to Isaac Newton. This lecture covers Newton's background and the first two of his laws of motion, involving inertia (mass), acceleration, and force.
The turning point in the development of classical physics traces to Isaac Newton. This lecture covers Newton's background and the first two of his laws of motion, involving inertia (mass), acceleration, and force.
Ημερομηνία προβολής
Ιαν 01, 2006
The master idea for this course is Newton's statement of the relationship between force and acceleration: F = ma. This formula determines almost all of classical physics. It is at once simple and deep.
The master idea for this course is Newton's statement of the relationship between force and acceleration: F = ma. This formula determines almost all of classical physics. It is at once simple and deep.
Ημερομηνία προβολής
Ιαν 01, 2006
Thinking about circular motion led Newton to an understanding of planetary motion, closing the loop with Galileo, Kepler, and Copernicus, and making sense of a Sun-centered solar system and its connection to everyday motion.
Thinking about circular motion led Newton to an understanding of planetary motion, closing the loop with Galileo, Kepler, and Copernicus, and making sense of a Sun-centered solar system and its connection to everyday motion.
Ημερομηνία προβολής
Ιαν 01, 2006
Newton's deduction of the law of gravity involved some speculation, just a little math, and a lot of creativity. Remarkably, it succeeded in unifying terrestrial and celestial phenomena into one framework.
Newton's deduction of the law of gravity involved some speculation, just a little math, and a lot of creativity. Remarkably, it succeeded in unifying terrestrial and celestial phenomena into one framework.
Ημερομηνία προβολής
Ιαν 01, 2006
Newton's third law of motion ("for every action, there is an equal and opposite reaction") can be exasperatingly counterintuitive at first, but it makes perfect sense in terms of a new quantity, momentum.
Newton's third law of motion ("for every action, there is an equal and opposite reaction") can be exasperatingly counterintuitive at first, but it makes perfect sense in terms of a new quantity, momentum.
Ημερομηνία προβολής
Ιαν 01, 2006
Introducing the concept of momentum broadens the power of physics and results in the Newtonian world-view of the universe as a deterministic clockwork, based on only a few basic underlying and unified principles.
Introducing the concept of momentum broadens the power of physics and results in the Newtonian world-view of the universe as a deterministic clockwork, based on only a few basic underlying and unified principles.
Ημερομηνία προβολής
Ιαν 01, 2006
A century after Newton, a new concept more abstract than force gained popularity: energy. Energy forms the basis of understanding everything from chemistry and biology to geology and engineering.
A century after Newton, a new concept more abstract than force gained popularity: energy. Energy forms the basis of understanding everything from chemistry and biology to geology and engineering.
Ημερομηνία προβολής
Ιαν 01, 2006
The concept that energy can move from place to place and change forms helps explain why things behave as they do. The rate at which energy flows from one system to another (the power) explains even more.
The concept that energy can move from place to place and change forms helps explain why things behave as they do. The rate at which energy flows from one system to another (the power) explains even more.
Ημερομηνία προβολής
Ιαν 01, 2006
In Newton's day, electricity and magnetism were mere curiosities. By the 19th century, serious investigation into these phenomena began. Though heralded as "new" forces of nature, they still fit within the Newtonian framework.
In Newton's day, electricity and magnetism were mere curiosities. By the 19th century, serious investigation into these phenomena began. Though heralded as "new" forces of nature, they still fit within the Newtonian framework.
Ημερομηνία προβολής
Ιαν 01, 2006
In his studies of electricity and magnetism, Michael Faraday introduced the radical idea of the force "field." Sources create a field around them, and other objects then respond locally to that field.
In his studies of electricity and magnetism, Michael Faraday introduced the radical idea of the force "field." Sources create a field around them, and other objects then respond locally to that field.
Ημερομηνία προβολής
Ιαν 01, 2006
This lecture covers electrical concepts such as charge, voltage, and current. Progress in understanding electricity in the 19th century led to rapid developments in applied physics.
This lecture covers electrical concepts such as charge, voltage, and current. Progress in understanding electricity in the 19th century led to rapid developments in applied physics.
Ημερομηνία προβολής
Ιαν 01, 2006
Electricity and magnetism are distinct but intimately related. This lecture explores the myriad connections between them, leading to a deeper understanding of the unity of electromagnetic physics.
Electricity and magnetism are distinct but intimately related. This lecture explores the myriad connections between them, leading to a deeper understanding of the unity of electromagnetic physics.
Ημερομηνία προβολής
Ιαν 01, 2006
In one of the great triumphs of classical physics, James Clerk Maxwell summarized two centuries of research on electricity and magnetism in four famous equations, explained here in words and concepts.
In one of the great triumphs of classical physics, James Clerk Maxwell summarized two centuries of research on electricity and magnetism in four famous equations, explained here in words and concepts.
Ημερομηνία προβολής
Ιαν 01, 2006
Published in the 1860s, Maxwell's equations made a startling prediction: Electric and magnetic fields should interact to produce electromagnetic waves - of which visible light is only a tiny range of a vast spectrum.
Published in the 1860s, Maxwell's equations made a startling prediction: Electric and magnetic fields should interact to produce electromagnetic waves - of which visible light is only a tiny range of a vast spectrum.
Ημερομηνία προβολής
Ιαν 01, 2006
Vibrations and the associated phenomenon of waves are everywhere in the natural world. Understanding the big ideas of waves plays a key role in the developing story of physics.
Vibrations and the associated phenomenon of waves are everywhere in the natural world. Understanding the big ideas of waves plays a key role in the developing story of physics.
Ημερομηνία προβολής
Ιαν 01, 2006
One hundred years after Newton described light as a stream of particles, Thomas Young turned the world of optics on its head when he demonstrated that light was not made of particles but was in fact a wave phenomenon.
One hundred years after Newton described light as a stream of particles, Thomas Young turned the world of optics on its head when he demonstrated that light was not made of particles but was in fact a wave phenomenon.
Ημερομηνία προβολής
Ιαν 01, 2006
Atoms provide a unifying principle even greater than Maxwell's equations. Energy, structure of materials, chemistry, heat, optics, and much more become simpler to describe and explain at a fundamental level.
Atoms provide a unifying principle even greater than Maxwell's equations. Energy, structure of materials, chemistry, heat, optics, and much more become simpler to describe and explain at a fundamental level.
Ημερομηνία προβολής
Ιαν 01, 2006
Thermodynamics is the study of heat and energy. When there are large numbers of particles, average quantities become easier, not more difficult, to predict. This is the heart of thermodynamics.
Thermodynamics is the study of heat and energy. When there are large numbers of particles, average quantities become easier, not more difficult, to predict. This is the heart of thermodynamics.
Ημερομηνία προβολής
Ιαν 01, 2006
One of the last great developments of classic physics was the discovery of a new property of systems, entropy, defined colloquially as "you can't win, you can't break even, and you can't get out of the game."
One of the last great developments of classic physics was the discovery of a new property of systems, entropy, defined colloquially as "you can't win, you can't break even, and you can't get out of the game."
Ημερομηνία προβολής
Ιαν 01, 2006
Classical physics is defined in part historically and in part by a philosophical outlook: The world is ordered, and there is a limited set of fundamental ideas that explain and predict all natural phenomena.
Classical physics is defined in part historically and in part by a philosophical outlook: The world is ordered, and there is a limited set of fundamental ideas that explain and predict all natural phenomena.
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