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Responsible Energy Corporation
Farms Houses Land
Solar Cells Panels
Custom design sun kits
Solar Power Systems
Wind Turbines
Permanent Magnet Alternators
High Amps PMA
Electric Bikes
e-Bicycle Conversion Kits
LiFePO4 Battery for e-Bicycles
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A wind turbine is a very simple machine: how to build it.
And how to convert a bike to electric - GT Aggressor 1.0 part 1 and GT Avalanche 2.0 part 2 |
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| Physics: Vibrations and Waves Classical Mechanics Electricity and Magnetism |
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MIT 8.03 Physics III: Vibrations and Waves, Fall 2004 - 24 videos
Instructor: Professor Walter Lewin
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| 1. Periodic Phenomena (Oscillations, Waves) - SHO - Complex Notation - Differential Equations - Physical Pendulum |
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| 2. Beats - Damped Free Oscillations (Under- Over- and Critically Damped) - Quality Q |
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| 3. Forced Oscillations with Damping |
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| 4. Forced Oscillations - Power at Resonance (Resonance Absorption, Resonance Width, Quality Q) - Transient Phenomena (General Solutions including Initial Conditions) |
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| 5. Coupled Oscillators |
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| 6. Driven Coupled Oscillators - Triple Pendulum - Steady State and Transient Solutions - Cramer's Rule |
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8.03 In addition to the traditional topics of mechanical vibrations and waves, coupled oscillators, and electro-magnetic radiation, students will also learn about musical instruments, red sunsets, glories, coronae, rainbows, haloes, X-ray binaries, neutron stars, black holes and big-bang cosmology. |
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Identify this Phenomenon
What caused this ring of colors? At the time of this writing, MIT Physics Professor Walter Lewin had yet to find someone who can give the correct explanation. Not students. Not colleagues. Not APOD editors. He wonders how the astute readers of APOD will do. Can you match wits with Professor Lewin? Lewin took the above picture in a construction area in Massachusetts on June 20. Your answer should be able to explain the color sequence and the bright area in the center. Shortly after he gives the explanation on December 7 during a lecture in his course Vibrations and Waves at MIT, APOD will carry a link to it. A discussion page for this image will be held in the APOD Forum on the Asterisk*. Additionally, Professor Lewin will answer appropriate e-mail questions.
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