Recent content by wrongusername

  1. W

    Extracellular ion concentrations and neural membrane potential

    Ahh excellent, thanks! Though I do wonder what my textbook was talking about when it says: But if efflux of chloride changes chloride's equilibrium potential a lot because there's not that much of it, then the same must be true for an influx of chloride when potassium is introduced...
  2. W

    Extracellular ion concentrations and neural membrane potential

    I'm learning about a very basic model neuron, in which only potassium and chloride is permeable. Why is it that when the extracellular concentration of potassium is increased, the neuron become depolarized, whereas when extracellular concentration of chloride is reduced, the neural membrane...
  3. W

    MATLAB Mathcad vs MATLAB vs Maple vs Mathematica

    From my limited experience with Matlab, I wholeheartedly agree with this. Matrices are so much easier to enter in, etc, than in Mathematica. But I hate the way it works.
  4. W

    Overcoming Haughtiness: A Guide for Scientists

    So when others compliment you on being smart, how should you reply? Also, I have this thing where if I do bad on a test, I am sad, but if I do well, I am often so proud of it. It's ridiculous, but it keeps happening. :frown:
  5. W

    MATLAB Mathcad vs MATLAB vs Maple vs Mathematica

    Eh, I prefer Mathematica now after using it so much at UCLA. It's got a sort of Python/C++ feel to it. Here, it's the program that the physics department uses. But I'm intrigued. Would it be easy to simulate, say, a number of particles bumping around in a box?
  6. W

    Look at yourself after watching this

    Aww really? About what? :(
  7. W

    Is it only the speed of light in a vacuum that is constant for all observers?

    Thanks for the clarification! So in the original scenario, would we then use the relativistic velocity addition formula, like what Doc Al did?
  8. W

    Fuel Consumption of a Ship Traveling at Near Light Speed

    Wow, thanks! It makes more sense now But in the right half of the picture, where Pam sends signals back to earth, is Earth also suddenly seeing Pam's time going really quick (4 signals in 2 years)? If so, why?
  9. W

    Fuel Consumption of a Ship Traveling at Near Light Speed

    This is true, imo, only from the person on Earth's point of view. How much slower time is passing shouldn't be absolute. Speculatively, what if you have another spaceship, traveling at a fraction of the relativistic speed of the first spaceship? If the first spaceship undergoes 10 years of...
  10. W

    Fuel Consumption of a Ship Traveling at Near Light Speed

    units of force * time = units of momentum... interesting, so does momentum get increased by 317% than it would have otherwise?
  11. W

    Fuel Consumption of a Ship Traveling at Near Light Speed

    Actually, wouldn't people back on Earth appear to be experiencing time extremely slowly? As slow as the outside world is perceiving their time to be? Because they can argue that their frame of reference is as valid as yours if you're on earth, and so from their perspective you are the one...
  12. W

    Is it only the speed of light in a vacuum that is constant for all observers?

    I think I agree with Drakkith here, although I may be wrong. Like in a vacuum, shouldn't the speed of light depend on one over the square root of epsilon and mu? And shouldn't the values for epsilon and mu in a certain medium be independent of whatever speeds you're traveling at? If so, then...
  13. W

    What Is Energy: Unveiling the Mystery

    Really? Then are all the physics problems I did where two particles moving at relativistic speeds towards each other collide, and a third particle is formed with the energy E = mc^2 of its mass equal to the kinetic energies of the other two particles, pure fantasy? Interesting, I thought my...
  14. W

    What Is Energy: Unveiling the Mystery

    This seems unrelated to what Nano-Passion is asking, but I am wondering how energy ties in with mass. If energy and mass could be converted into each other, then are the two somehow perhaps two sides to the same coin?
  15. W

    Schrodinger ground state wave function

    Thank you for the reply! Well, V\left(x\right)=\infty for all x not between -a/2 and a/2, though if I plug infinity in for V in the Schrodinger equation, I would get \infty=E\psi? Wouldn't it be two solutions since, like you said, the two solutions would be combined into one general...
Back
Top