Free Physics Video and Audio Courses These are the free physics video and audio courses. They are ordered based on their difficulty, starting with easiest first and ending with the most difficult. Also if you love physics, check out my friend's video websites dedicated to three famous physicists: And here are the physics video lectures: Descriptive introduction to physics: No prior physics is required. Classical Mechanics: In addition to the basic concepts of Newtonian Mechanics, Fluid Mechanics, and Kinetic Gas Theory, a variety of interesting topics are covered in this course: Binary Stars, Neutron Stars, Black Holes, Resonance Phenomena, Musical Instruments, Stellar Collapse, Supernovae, Astronomical observations from very high flying balloons (lecture #35), and you will be allowed a peek into the intriguing Quantum World. Introductory Physics Introduction to forces, kinetics, equilibria, fluids, waves, and heat. Electricity and Magnetism: Vibrations and Waves: Symmetry, Structure, and Tensor Properties of Materials
PocketSpacecraft.com | Open source open access personal space exploration 10 Awesome Online Classes You Can Take For Free Cool, but you need iTunes for nearly everything, and that gets an 'F.' Are there really no other places to get these lessons? I was sure there are some on Academic Earth. Flagged 1. 7 of them are available via YouTube. 2. iTunes is free. 1. 2. Don't worry, we're looking out for you! While I have no personal beef with iTunes, I know that many people share your sentiments — so I actually made a concerted effort to include relevant youtube links when possible. This Woman Has Spent The Last 14 Years Photographing The World's Oldest Trees San Francisco-based photographer Beth Moon has spent the last 14 years in search of the world’s oldest trees. In the most remote and obscure locations she has uncovered the most spectacular trees, many of which appear old enough to hold long buried secrets of the world. In her artist statement Beth writes, “Standing as the earth’s largest and oldest living monuments, I believe these symbolic trees will take on a greater significance, especially at a time when our focus is directed at finding better ways to live with the environment.” Take a peak at some of the most amazing and oldest trees Beth encountered throughout her 14-year journey. Beth decides which trees to photograph using a few different criteria. Before venturing to a certain location, Beth does her research uncovering the history of the spot. Dr. It is so important that we fight to protect the old trees that still stand tall, they are the only living thing that remains of the distant past. How do you know how old a tree is?
Maxwell's equations: meaning, derivation and applicability - Classical Physics Quote So if Coulombs law works best for you, then use coulomb's law - there's no need to re-invent the wheel. As far as the original problem goes it is solved, but it uncovered great many things for me, so what is left now is curiosity because this solution implies Coulomb's and Biot-Savart law tell different and more complete story than Maxwell's equations and yet they are supposed to talk about the same E and B fields. There are two kinds of fields, "radial" like gravity and electric fields, and we have "rotational", like vortexes, whirlpools or magnetic fields. The quantity of electric potential of a single electron is discrete and the smallest quantified one, it does not vary or change but only its magnitude is "felt" less as the distance increases in whatever direction. This page here shows you how to get coulomb's law from maxwell's first equation: -- This page says: -"Gauss's law can be derived from Coulomb's law Merged post follows:
Astro Bob | Celestial happenings you can see from your own backyard Calculate the amount of water you use to wash dishes The newest addition to Ziploc’s food storage products are versatile, reusable and eco-friendly VersaGlass Containers. Now, you can store, heat and serve – all in one container. Get more out of it When it comes to preparing meals for you and your family, Ziploc® VersaGlass™ Containers make life easy. The stylish, tempered glass containers are available in a variety of sizes and shapes. You can use them to store food in the fridge or freezer, heat food in the oven or microwave, and serve food on the dining room table. When you use Ziploc® VersaGlass™ Containers to make, bake and serve and store your family’s favorite meals, you end up washing fewer dishes. A sustainable choice Ziploc® VersaGlass™ Containers also are designed to last so you can reuse them again and again. That’s good news all around!
image The Second Law and Energy (second law event) 10/05/2007 1:00 PM Broad InstituteSteven Chu, Secretary of EnergyDescription: This Nobel Prize"winning scientist admits to staying up late the night before his talk to bone up on thermodynamics. He puts his research to good use, discussing the history and application of the laws of thermodynamics, which have served as "the scientific foundation of how we harness energy, and the basis of the industrial revolution, the wealth of nations." Taking Watt's 1765 steam engine, Stephen Chu illustrates basic principles of thermodynamics -- that energy is conserved, that you can do work from heat, especially when you maximize the difference in temperature in the system and minimize heat dissipation from friction. Chu offers another form of the laws: You can't win; you can't break even; and you can't leave the game. The game hasn't changed all that much in the past few centuries. Nations now burn coal for electricity, achieving around 40% thermal efficiency. credit license MIT TechTV