SC Tiger Posted November 19, 2018 Share Posted November 19, 2018 1 Link to comment Share on other sites More sharing options...
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pipedreams Posted November 20, 2018 Share Posted November 20, 2018 3 1 3 Link to comment Share on other sites More sharing options...
Dric902 Posted November 20, 2018 Share Posted November 20, 2018 1 5 Link to comment Share on other sites More sharing options...
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Steelharp Posted November 20, 2018 Share Posted November 20, 2018 Shoulda let it go on Reiner's head. 2 1 1 Link to comment Share on other sites More sharing options...
Gun Shark Posted November 20, 2018 Share Posted November 20, 2018 I feel like I should be high to fully appreciate this. 1 Link to comment Share on other sites More sharing options...
pipedreams Posted November 20, 2018 Share Posted November 20, 2018 24 minutes ago, Gun Shark said: I feel like I should be high to fully appreciate this. ? 1 Link to comment Share on other sites More sharing options...
Administrators Eric Posted November 20, 2018 Author Administrators Share Posted November 20, 2018 1 2 Link to comment Share on other sites More sharing options...
pipedreams Posted November 20, 2018 Share Posted November 20, 2018 Slav electric vehicle technology puts Tesla to shame 3 Link to comment Share on other sites More sharing options...
Administrators Eric Posted November 20, 2018 Author Administrators Share Posted November 20, 2018 10 minutes ago, pipedreams said: Slav electric vehicle technology puts Tesla to shame Hook a battery charger up to it and see what you get. 3 Link to comment Share on other sites More sharing options...
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pipedreams Posted November 20, 2018 Share Posted November 20, 2018 Grass After a Lightning Strike 2 1 Link to comment Share on other sites More sharing options...
pipedreams Posted November 20, 2018 Share Posted November 20, 2018 Interesting. 3D-Printed Cast Uses Ultrasound to Heal Bones 40% Faster 1 1 Link to comment Share on other sites More sharing options...
Suspect Unknown Posted November 20, 2018 Share Posted November 20, 2018 On 7/7/2018 at 8:36 AM, Dric902 said: Dr. Gilbert Lewis not only came up with the word ‘photon’ and the official definition of ‘jiffy’ in physics and chemistry, but he also was nominated for a Nobel Prize 35 times, though never won a single one, something which rankled him to no end. I don't understand photons, and that has rankled me to no end. And I don't understand light either, it is both a particle and a wave. I don't think that anyone will ever comprehend what photons or light is. Link to comment Share on other sites More sharing options...
Dric902 Posted November 20, 2018 Share Posted November 20, 2018 20 minutes ago, Suspect Unknown said: Particle wave duality is well researched Wave-particle duality In physics and chemistry, wave-particle duality holds that light and matter exhibit properties of both waves and of particles. A central concept of quantum mechanics, duality addresses the inadequacy of conventional concepts like "particle" and "wave" to meaningfully describe the behaviour of quantum objects. The idea of duality is rooted in a debate over the nature of light and matter dating back to the 1600s, when competing theories of light were proposed by Christiaan Huygens and Isaac Newton. Through the work of Albert Einstein, Louis de Broglie and many others, it is now established that all objects have both wave and particle nature (though this phenomenon is only detectable on small scales, such as with atoms), and that a suitable interpretation of quantum mechanics provides the over-arching theory resolving this ostensible paradox. https://www.sciencedaily.com/terms/wave-particle_duality.htm Wave-Particle Duality PREV NEXT At first, physicists were reluctant to accept the dual nature of light. After all, many of us humans like to have one right answer. But Einstein paved the way in 1905 by embracing wave-particle duality. We've already discussed the photoelectric effect, which led Einstein to describe light as a photon. Later that year, however, he added a twist to the story in a paper introducing special relativity. In this paper, Einstein treated light as a continuous field of waves -- an apparent contradiction to his description of light as a stream of particles. Yet that was part of his genius. He willingly accepted the strange nature of light and chose whichever attribute best addressed the problem he was trying to solve. Today, physicists accept the dual nature of light. In this modern view, they define light as a collection of one or more photons propagating through space as electromagnetic waves. This definition, which combines light's wave and particle nature, makes it possible to rethink Thomas Young's double-slit experiment in this way: Light travels away from a source as an electromagnetic wave. When it encounters the slits, it passes through and divides into two wave fronts. These wave fronts overlap and approach the screen. At the moment of impact, however, the entire wave field disappears and a photon appears. Quantum physicists often describe this by saying the spread-out wave "collapses" into a small point. Similarly, photons make it possible for us to see the world around us. In total darkness, our eyes are actually able to sense single photons, but generally what we see in our daily lives comes to us in the form of zillions of photons produced by light sources and reflected off objects. If you look around you right now, there is probably a light source in the room producing photons, and objects in the room that reflect those photons. Your eyes absorb some of the photons flowing through the room, and that's how you see. https://science.howstuffworks.com/light6.htm 1 Link to comment Share on other sites More sharing options...
pipedreams Posted November 21, 2018 Share Posted November 21, 2018 Link to comment Share on other sites More sharing options...
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