Recent content by kindlin
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Graduate The basic math of quantum mechanics
From another thread, this link was posted. I would love to read this paper, however I'm stumped in the very first equation. |\psi \rangle =\sum|a_k\rangle\langle a_k|\psi\rangle I actually have some basis in the ideas behind QM, and a general love of math, but I just have no idea how to...- kindlin
- Thread
- Basics Intro Mechanics Quantum Quantum mechanics
- Replies: 8
- Forum: Quantum Physics
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Graduate QM & Speed of Light: A Random Thinking
A couple things to note: Going fast in a video game is hard to handle because our computers must calculate each individual frame and a LOT is changing frame by frame if you go too fast, that is the only reason 'weird stuff' happens. In reality, well, reality is reality: things happen, no...- kindlin
- Post #9
- Forum: Quantum Physics
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Graduate Dark Energy/Matter: Why Does It Make Sense?
Why does it make more sense to imagine so much dark energy and dark matter to make things work (cosmologically speaking). Why can't gravity change? It just seems to make a lot more sense to alter one theory, than to start imagining all of this extra none-interacting material, which, oh , btw, is... -
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Graduate Loop-and-allied QG bibliography
Wow, there is a lot of information in this thread. It's too bad I can't understand any of it. Whenever I try and read into any part of the physics beyond GR and QM, I'm flooded with higher level mathematics which keep compounding on themselves until I'm thoroughly confused. I think if if I could...- kindlin
- Post #2,117
- Forum: Beyond the Standard Models
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Graduate Degrees of Freedom of Connected Compasses
I found that a "pair of compasses" refers to the tool for drawing arcs/circles. This question is so vague it's hard to begin to answer it in a coherent manner. -
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Undergrad EM Waves & Forces: Does a Particle Feel Force?
Well of course a light wave can accelerate a charged particle, an EM wave has the M part in it, which would affect a charged particle. What I've always wondered is, if you had, say, an atom of silicon floating in space and a stream of photons came flying at it, a few photons would hit the...- kindlin
- Post #5
- Forum: Electromagnetism
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Undergrad Gravitational force near and away from earth's surface
Oh man, I'm bad. Thanks guys, lol... -
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Graduate A question about damped resonant frequency
I'm taking a dynamics class right now, and we use ω_{d} = ω_{n}\sqrt{1-δ^{2}} where δ = \frac{C}{2mω_{n}} = damping ratio. Ignoring the initial transient response (dependent on initial conditions) and dealing solely with the steady state response (dependent on the forcing function), the maximum...- kindlin
- Post #6
- Forum: Electromagnetism
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Undergrad Gravitational force near and away from earth's surface
So, I asked myself the question, "why does the Earth's force of gravity effect us so dramatically on the surface of the earth, but seems nonexistent while just a couple hundred miles up?" I answered that question myself, after thinking more about it, because the idea of an orbit is that you... -
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Graduate Julian Barbour on does time exist
I wish I understood half of what is written in these articles. I'm not even sure what I don't understand, just that after reading a paragraph, I'm like, "what?" I've tried looking up each individual things I don't understand, but they each reference half the other things that I don't...- kindlin
- Post #12
- Forum: Beyond the Standard Models
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Graduate Julian Barbour on does time exist
I was liking your post until I got to "naively geometrizing [time] as just another spatial dimension." Care to explain why this view (detailed conceptually in my previous post) is not a good way to think of things? It is not a theory in itself, it is a prediction when you have multiple extra...- kindlin
- Post #10
- Forum: Beyond the Standard Models
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Graduate Julian Barbour on does time exist
Ever since I watched Imagining The Tenth Dimension, I've basically assumed that what we view as time is completely wrong. Now, what 'the proper way to think of time' is I have only half guesses, but the idea that time is always and permeates everything and every possible conscious being feels...- kindlin
- Post #7
- Forum: Beyond the Standard Models