Recent content by ucclarke

  1. U

    Gradient equation with retarded time

    thanx a lot, that's exactly what i found too then my mistake is certainly in the expansion of \left[\vec{p}\left(t_{o}\right)\cdot\nabla\right]\frac{\vec{r}}{r^{3}} term
  2. U

    Psychokinesis still not scientific?

    this's really cool, i wonder if any more papers would come up from other academic resources as well so there are scientific papers about psychokinesis, although i haven't read the whole paper yet and i haven't get to understand if it has been published in a serious magazine or a...
  3. U

    Gradient equation with retarded time

    i can't expand =\left(\frac{\vec{r}}{r^{3}}\cdot\nabla\right)\vec {p}\left(t_{o}\right) as it should be. mine doesn't satisfy the given answer can anyone help? i am going NUTS here
  4. U

    Gradient equation with retarded time

    no, okay this's from the second one i fnd
  5. U

    Gradient equation with retarded time

    i find this out of the first one (p(t_o)-3(\hat{r}\cdot p(t_o))\hat{r})/r^3 approved?
  6. U

    Gradient equation with retarded time

    yes, :) you caught me, I've misread yours but what about (\hat{r}\cdot\dot{p}(t_o))\hat{r} ? do you happen to figure out which of four gives it and how?
  7. U

    Gradient equation with retarded time

    ok, it's actually \nabla\left[\frac{\vec{r}}{r^{2}}\cdot\vec{p}\left(t_{o}\right )\right] , but really fine, thanks a lot. so may i ask which one of these terms give out (\hat{r}\cdot\dot{p}(t_o))\hat{r} and how?
  8. U

    Psychokinesis still not scientific?

    ok :smile: , that much is clear but any further, further than our own tissues and stuff??
  9. U

    Psychokinesis still not scientific?

    i am still under the impact of revenge of the sith and i wonder one thing so much related to those Jedi skills: is there any formal scientific evidence about human beings being able to move/fire/destroy... things with nothing but thoughts and/or by forming energy waves or whatever with...
  10. U

    Gradient equation with retarded time

    For a radiation problem, i am desperate about the expansion of the following equation: \nabla ( \hat{r} /r^2 \cdot \vec{p}(t_o)) where t_o is the retarded time at the center t_o=t-r/c and \vec{p}(t_o) is the electric dipole moment at t_o actually, it expands to 4 main parts and i am...
  11. U

    Which Engineering Path Suits a Math Nerd?

    good luck EE is a real fun for me in general. Especially Signal Processing works. You can drive Image processing, Video Processing, Sound Processimg... projects and play a lot with maths while doing'em. Aerospace is like a branch of ME as far as i know. So you should mainly choose between...
  12. U

    Jackson's Electrodynmics Online?

    hi, this is my very first post here I want to ask if anybody knows an internet site or sth similar to read JD Jackson's Electrodynamics? it is so vital for me to find related readings in that book as fast as possible due to my references at hand but it was highly futile searching it over google
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