@ACuriousMind yes you're right, a pity though (, on the other hand I enjoy reading Urs Schreiber's answers as well. this user MBN has some nice/famous question posts as well.
@ManishEarth yeah he puts time into each answer as well, so nice
@Phonon On my very first answer here on Physics.SE Peter Shor commented to tell me why I was wrong and dumb (he did it nicely). I felt honored to be bitchslapped by someone like him :-p
Perception of color and brightness is very complicated. You brain performs all sorts of normalization and prediction of color based on what it thinks is correct. The same is true for brightness estimation. This leads to huge number of surprising optical illusions. Here is one based on shadows...
I haven't read that answer in a while. I hope it isn't too wrong :-/
Something funny: this page calculates the time it would take for the Earth to fall into the sun if it stopped orbiting, but the formula there seems to conflict with the one I got here and that several other answers confirmed... anyone care to look for the difference?
If they were promoting physics lab equipment, some of that stuff is very expensive and they might only need to make one or two sales to make it profitable
But most of it I think is just people doling out links anywhere they can
That's the original idea behind spam, that you post or share a link anywhere you can, without bothering to consider whether the destination is an appropriate place for it. It's cheap to do so and you only need a few people to respond to make a profit
It irks me in a professional sense to see all these questions on Worldbuilding asking whether something can be done in a somewhat scientifically realistic manner, and then all the answers tossing most of established physics out the window :-P
@DavidZ I think the point of that site is to get under physicists' skins. I'm not going to say you shouldn't visit it, but it's like reading a comic book, don't be surprised when real science is given a back seat
Some would say that closing due to insufficient prior research is a valid reason. I'm not one of those people. I think this question doesn't really belong here, but I can't see a valid reason to get rid of it
I've ran across the idea that, besides simply writing partial differential equations in covariant form, they need to be hyperbolic with all characteristic speeds less than the speed of light. A straightforward generalization of the equations for a dissipative fluid to the relativistic case suppos...
I can't see the difference bewteen very low quality and not an answer. The flag descriptions are:
it is not an answer
This was posted as an answer, but it does not attempt to answer the question. It should possibly be an edit, a comment, another question, or deleted altogether.
it i...
I think the reason why the magnetic force is perpendicular to the magnetic field is, when the magnetic field exerts a force on the current carrying wire, the huge force at the centre moves either upward or downward depending on the direction of the current.
In other news, I'm happy to call this the first day of winter up in Canada. I'm sitting pretty in Toronto as usual and we have our second day this week of -10 degree weather. It's about time, eh? All that's left to do is grab a beer and go play hockey :D
Fun fact: Most, if not all of Canadian pride is found exclusively in our beer commercials (example: youtube.com/watch?v=nes4lCAFlr0). I am happy about this fact
Well, this was a question with clearly insufficient effort, "low quality" as per the literal definition (maybe not from the SE definition), and definitely a candidate for closure.
@New_new_newbie He's said in comments once or twice that simple things like this are actually good to answer because it can actually be a struggling point for some people
What's interesting, though, is that he initiated the VTC
Oh. For some reason, I was under the impression that if you have a question sitting at -3, and it has an answer sitting at even +1, that question can't be deleted, even if it deserves to be deleted.
Hang on, questions with upvoted answers can still be deleted after being closed, but the number of delete votes required scales with the number of upvotes on the answers
Perception of color and brightness is very complicated. You brain performs all sorts of normalization and prediction of color based on what it thinks is correct. The same is true for brightness estimation. This leads to huge number of surprising optical illusions. Here is one based on shadows...
I can't see the difference bewteen very low quality and not an answer. The flag descriptions are:
it is not an answer
This was posted as an answer, but it does not attempt to answer the question. It should possibly be an edit, a comment, another question, or deleted altogether.
it i...
I think the reason why the magnetic force is perpendicular to the magnetic field is, when the magnetic field exerts a force on the current carrying wire, the huge force at the centre moves either upward or downward depending on the direction of the current.
