“I am a very good dog. In experiments, though, the energy of the electrons doesn’t depend on the intensity at all. *“Microscopic” for a physicist means anything too small to be seen with the naked eye. On the other hand, if you add two waves together such that the crests of one wave fall in the troughs of the other and vice versa (“out of phase”), the two will cancel out, and you’ll end up with no wave at all.”, “what relativity says is that because a photon has some energy, it must have some momentum, even though it doesn’t have any mass.”, “If we add together three different waves, the region where we have a good probability of seeing the bunny gets narrower, and with five different waves, it’s narrower still. These explanations include discussion of both the weird predictions of the theory (both practical and philosophical), and the experiments that demonstrate these predictions. A dog can walk down the same street every day for a year, and it will be a new experience every day. Click or Press Enter to view the items in your shopping bag or Press Tab to interact with the Shopping bag tooltip. They approach the world with fewer preconceptions than humans, and always expect the unexpected. Chad Orzel (a professor at Union College,New York) in his book, How To Teach Quantum Physics To Your Dog, tries to accomplish just that; how do you explain sub-atomic physics in a fun and easy way? All rights reserved. As far as introductory, non-technical books on quantum mechanics go, this one clearly hits its targeted audience. When a moving object hits a stationary one, the moving object will slow down, losing momentum, while the stationary object will speed up, gaining momentum.”, “The other notable feature of particles is something that seems almost too obvious to mention: particles can be counted.”, “Unfortunately, the wave model comes out all wrong: it predicts that the energy of the electrons leaving the atoms should depend on the intensity of the light—the brighter the light, the harder the shaking, and the faster the bits flying away should move. This covers a range from bacteria to atoms to electrons. “Wait a minute—now we have two bunnies?” “No, each wavefunction describes a bunny with a particular momentum, but it’s the same bunny both times.” “But doesn’t adding them together mean that you have two bunnies?” “No, in this case, it just means that there are two different states* you might find the single bunny in. Chad Orzel was born and raised in central New York, and received a degree in physics from Williams College, and his Ph.D. in chemical physics from the University of Maryland. An Introduction to Quantum Physics 1, Chapter 1 Which Way? . If you can look at the world the way a dog does, as an endless source of surprise and wonder, then quantum mechanics will seem a lot more approachable. Instead, it’s a deep statement about the limits of reality. Clearing stuff up for the […], Book Review: Every Life Is On Fire, By Jeremy England. The wavefunction we get from adding them together (the solid line in the figure) has lumps in it—there are places where we see waves, and places where we see nothing. Apart from being a sturdy foundation for the topic of quantum physics, the fun-loving and comical conversations between Orzel and Emmy the dog are a captivating read. Quantum physics may sound like the stuff of fantasy fiction, but it’s science. And once you see quantum physics explained to a dog… De Broglie suggested that just as a photon has a momentum determined by its wavelength, a material object like an electron should have a wavelength determined by its momentum: γ = h/p which is just the formula for the momentum of a photon (page 24) turned around to give the wavelength.”, “Looked at in terms of wavefunctions, then, we can see that this relationship is much more than just a practical limit due to our inability to measure a system without disturbing it. Yet in a sense the weirdness associated with quantum mechanics is. You can view Barnes & Noble’s Privacy Policy. If dog treats appeared out of empty space in the middle of a kitchen, a human would freak out, but a dog would take it in stride. When Is It Time For A “Manhattan Project”? Well, each wave corresponds to a particular momentum—a different velocity for the (single) bunny moving through the yard. Rent and save from the world's largest eBookstore. She wasn’t just a friendly mutt who needed a home. Part of learning quantum mechanics is learning to think like a dog. Part of learning quantum mechanics is learning to think like a dog. "Forget Schrödinger's Cat," says Emmy, "quantum physics is all about dogs." Video November 29, 2014 Chad. Wavelength and frequency are related to each other—longer wavelengths mean lower frequency, and vice versa.”, “Einstein described a beam of light as a stream of little particles, each with an energy equal to Planck’s constant multiplied by the frequency of the light wave (the same rule used for Planck’s “oscillators”). . a long-term relationship, building a career, and searching for something she could not name. I don't know that there was ever a really official announcement of this, but the bloggers got email a while back letting us know that the site will be closing down. This one seems like a good fit. She wasn’t just a friendly mutt who needed a home. He lives near campus with his wife Kate, their daughter, and, of course, Emmy, the Queen of Niskayuna. At a dusty corral on the Wind River Indian Reservation, she ... A “constantly captivating…well-researched and often moving” (The Wall Street Journal) history of Checkpoint Charlie, the ... A “constantly captivating…well-researched and often moving” (The Wall Street Journal) history of Checkpoint Charlie, the Get a $10 Gift Card With Every $100 B&N Gift Card Purchase, 50% Off Ty Frozen 2 - Olaf B&N Exclusive 13" Plush, Knock Knock Gifts, Books & Office Supplies, Learn how to enable JavaScript on your browser. Quantum Squirunnies: “How to Teach Quantum Physics to Your Dog” by Chad Orzel “Uncertainty is not a statement about the limits of measurement, it’s a statement about the limits of reality. Video: Schrödinger’s Dog. Introduction Why Talk to Your Dog about Physics? Sound bites as particle-wave duality, Heisenberg’s uncertainty principle, and quantum tunnelling are just a few of the many topics covered and are colourfully explained within this book. Quantum mechanics, on the other hand, puts all those basic notion to a test. She’s a year-old mixed-breed dog, German shepherd and something else. Where are all the universes in which Chad drops steak on the floor? In How to Teach Physics to Your Dog, Chad Orzel relates these conversations in which he explains to an eager Emma the basics of quantum physics. The dog from the title is author's German shepherd, and she is used as a stand-in for all the naïve, "Newtonian" ways of thinking about the world. Part of learning quantum mechanics is learning to think like a dog. Classical laws of motion govern the motion of anything large enough to see with the naked eye. Discussing quantum physics with my dog is useful because it helps me see how to discuss quantum mechanics with humans. Asking for the precise position and momentum of a particle doesn’t even make sense, because those quantities do not exist.


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