@KyleKanos I've been known to try editing it to fix it first. And sometime the OP gets huffy and re-uglifies it. Then you have to decide how vindictive you're feeling.
I have the following elementary issue in R.
I have a for (k in 1:x){...} cycle which produces numerical vectors whose length depends on k.
For each value of k I produce a single numerical vector.
I would like to collect them as rows of a data frame in R, if possible. In other words, I would lik...
In the 2005 film version of Fantastic Four, Reed (and crew) are wearing specially designed suits that contain 'unstable molecules':
SUE: The synthetics act as a second skin, adapting to your individual needs
...
REED: Material made from self-regulating unstable molecules? I've been...
I've tried to derive the equation $V = L \dot{I}$ for an inductor from Maxwell's equations. I keep getting the wrong sign. I'd like to ask about this but it's a check-my-work question by construction.
@Gaurav Nah. Go to meta.stackexchange.com/questions, choose the votes tab, click on the last page at the bottom, pick a couple and get the timeline for that post.
are we able to calculate the wave function in a double slit experiment and what happens at the slits?
I mean we have the wave function $\Psi(x,t)_B$ that describes the state of the photon before the slits. Including the interactions at the slits are we able to calculate what is the wave function $\Psi_A$ after the photon passes through the slit?
I know you could just leave a comment, but not in this case I couldn't. I just found this awesome app while researching on my passion, physics. I stumbled across a question about time dilation, not the easiest concept to grasp, and a commenter had his own question within his comment, just wasn't ...
If anyone wonders what's going on on meta, I'm adding software-questions because this is such a frequent issue I think it'll be good to have a convenient list of all relevant meta questions. Feel free to add the tag to old questions where it fits.
How do I parallel transport a vector along $x^\mu(\lambda)$? Don't I just use the directional derivative on the vector $v^\nu$, $dx^\mu/d\lambda \nabla_\mu v^\nu$ ?
@ACuriousMind In the vast majority of physics quantum papers (that I have read) the Hilbert space is NEVER mentioned...it is one of the most unnerving things for a mathematician, or mathematical physicist.
@0celo7 the modes? rigorously, nothing that you can make use of...they may become well-defined operators if you put the theory on a lattice or something like that (depends on the precise definitions, mostly of the relative Hilbert space, the one never mentioned)
So on this application, they're asking me "What makes you unique" would it be bad for me to write, I am not a beautiful and unique snowflake, I'm the same decaying organic matter as everyone else?
Physics assumes in EVERY theory that a physical system is time-translation invariant and also space-translation invariant, i.e. physical laws are regarded to be the same on the whole spacetime. Why there is no theory that has not these invariances?
Why physicists are assuming that the following ...
Your question started out as a perfectly good question about assumptions made in physics. It's a shame you had to move on to ectoplasm. — John Rennie4 mins ago
JohnRennie captures my thoughts precisely
I seem to recall that this user like to post about ectoplasm. I needed a few hours to get the creepy images from their last link out of my mind
So there's this careers course thing I'm going to this week as part of some graduate school requirement, and I've been asked to prepare a curriculum vitae for it. I'm probably going to include something like
Active on Physics Stack Exchange (http://physics.stackexchange.com/users/8563/emil...
@KyleKanos If that's for a job appliction, bad. You majored in physics and astrostuff, so saying essentially that that's what you'd still prefer to be doing is not a good way to go. As for optimistic etc, those will always need to be followed by concrete examples.
@alarge I literally had 140 characters for that, so not much I could expand on. :/ If they're honestly going to judge me on that question, I probably don't want to work there anyway