6,541 reputation
52045
bio website wafflescrazypeanut.wordpress.…
location Chennai, India
age 19
visits member for 2 years, 2 months
seen 4 hours ago

Crazy amateur studying Aeronautics learning Physics (Wanna know how much I love Physics?). I spend most of my time reading stuff in the internet, especially Stack Exchange (Wanna know how SE changed me?). Then, I'll be coding, gaming, and (sometimes) lurking in my new blog. When situation forces me to get up from my PC, I juggle...

                 


Oct
13
comment How would gravity change on a planet rotating around itself very fast?
@OlinLathrop: Oops... Correction made! Thanks :)
Oct
13
comment How would gravity change on a planet rotating around itself very fast?
@NPSF3000: True. Obviously, the $g$ can't match the $mr\omega^2$ component, especially when $\omega$ is that large. Okay, I'll add it to my answer. Thanks for bringing that up. :)
Oct
13
comment How would gravity change on a planet rotating around itself very fast?
@NPSF3000: Not exactly. That's what I mentioned above. The net acceleration might be zero, but not the "g" itself! When stuff is in orbit, the centripetal acceleration balances the "g", that doesn't mean "g" is zero... ;-)
Aug
1
comment Would magnetic flux be necessary for analogous systems?
Hmmm... That's an useful link. Looks like you've given the inverse relations $V\to F$ and $I\to F$. Based on your link (and Phonon's argument), I might guess that the current-source equivalent is (probably) mathematical, and so I don't think I should expect any intuitive explanation for that. Anyways, thanks for your answer :)
Aug
1
comment Would magnetic flux be necessary for analogous systems?
Yep, I agree with your argument that voltage can be thought of as change in magnetic flux. Thanks :)
Jul
31
comment Would magnetic flux be necessary for analogous systems?
@Floris: I've revised my question with a sample of the differential equations which obviously show my confusion :)
Jul
31
comment Would magnetic flux be necessary for analogous systems?
Dear @Luboš: Well, I'm able to understand the equivalence for the $F\to V$ system quite well. Can you specify which of those entries disagree? In his lecture, Feynman addressed only the voltage-analogous system (which I understand just fine). Only the latter entries (for the current-analog) are confusing me (which wasn't addressed by Feynman)
Jun
14
comment Why don't rockets tip over when they launch?
@karthikeyan: The author has accepted the answer, which implies that he's convinced ;-)
May
19
comment Why does a system try to minimize potential energy?
Shouldn't the conversation be other way around? Physicists develop theories based on experiments, and don't really ask "why" questions (that applies to physics students too) as they're aware of the fact that "why" questions can't be answered! Only beginners find it hard to interpret.
May
9
comment Black-holes are in which state of matter?
(sigh) Blackholes aren't infinitesimal. They're finite in size, and have a finite mass. You're talking about the center of the blackhole (the singularity) where the laws break down while I'm talking about the entire blackhole!
May
9
comment Black-holes are in which state of matter?
The text you've quoted mentions about the mathematical singularity which isn't matter (yeah, but) the question which I intended to ask then, was about the form of matter that makes the black hole itself, not the singularity!
May
9
comment NO Uncertainties for particles in their own frames!
The uncertainty principle doesn't mean that particles jiggle back and forth. Instead, it places a fundamental (quantum mechanical) limit to the precision of our classical instruments. And, we're in a perplexed state of mind, that we've already been confused by the particle-nature and wave-nature of the so-called particles. In such a state, how can we imagine a frame for such an inconceivable thing?
May
1
comment Why can't an excess of electrons or holes by themselves cause current flow?
In addition to what others said, I don't think the definition of electron holes work out for usual metals. A hole is just the absence of electron in an otherwise full valence band. In your case, the valence band is full only because of the excess electrons and holes.
Apr
23
comment What is charge?
@user5462: If it did help you solve your problem, please consider accepting the answer, just to prevent your question from queuing in the unanswered list ;-)
Apr
22
comment What is charge?
@user5462: I don't understand what you're getting there. As far as I can see, it still circles around our usual definition, except that confusing (& weird) start. You could define it any way you want, to convince yourselves, but I won't comment on whether it'd be useful for anyone!
Apr
22
comment What is charge?
@user5462: The theory-of-everything has got nothing to do with our "definition" of stuff. Yeah, these properties are much like axioms. We can only speak of their observable characteristics
Apr
19
comment What determines the speed required to pull a table cloth?
I guess the entire problem depends on friction between different objects in the table and the cloth, which adds complexity to the problem.
Mar
6
comment Does evaporation decrease entropy?
@annav: That would serve as a nice answer ;-)
Feb
20
comment Temperature and resistance?
Okay, but what about the other kind? o_O
Jan
22
comment Why doesn't a fly fall off the wall?
@CeesTimmerman: I did mean "capillary action" back there :)