6,741 reputation
52148
bio website wafflescrazypeanut.wordpress.…
location Chennai, India
age 19
visits member for 2 years, 9 months
seen 11 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...

                 


May
19
comment How fast will 1 Liter of 65°C water get back to 20°C?
By fast, if you mean the "time", then this might be relevant.
Mar
20
comment Why does the system move until equal temperatures are obtained?
Well, comments can be used for such short sentences. If it's gonna be an answer, then it'd be nicer to brief it. Would you be so kind to explain it, given the level of OP? :)
Feb
20
comment Can Gases conduct Electricity?
@mikuszefski: No, thank you for bringing it up. I'm much more convinced with the revised version, compared to my previous (rather ugly) one... :)
Feb
19
comment Can Gases conduct Electricity?
@mikuszefski: I think the problem here is my statement of "All dielectrics...". There are a few cases (as you've mentioned), where the breakdown voltage is just meant to ionize the stuff! And, pardon me that I've miserably forgotten to mention that the breakdown voltage always ionizes the stuff first, and the electrons produced by the ionization is responsible for creating the avalanche of free electrons. (I've updated my answer)...
Feb
19
comment Can Gases conduct Electricity?
@mikuszefski: No, the noble gases don't have covalent bonds. In that case, ionization occurs directly! (Thanks! I've updated my answer).
Feb
7
comment Home-made Shock diamond
@akhmeteli: No, you're right. Here's a Schlieren photograph captured at the tip of a whip. Even the "bang" of a balloon produces a shock. I didn't include that because well, that was me two years back. Thanks for asking, I've updated my post... ;-)
Jan
10
comment Uncertainty in parenthesis
Colors are rather dull for physics expressions if you ask me. IMO, it clouds the beauty of latex!
Jan
1
comment What is a wave? What is a particle?
Related: physics.stackexchange.com/q/46237
Dec
22
comment Can calculations find positive entropy change for heat transfer from cold reservoir to hot body?
Hey user, welcome to Physics Stack Exchange. We support Latex markups at Physics.SE. Please try using that for your math expressions :)
Dec
21
comment What are some good physics websites for learning in general?
I don't think we accept list questions at Physics.SE.
Nov
16
comment Is it possible to increase temperature of sun using radiation of sun itself?
Right! BTW, practical mirrors (so far designed) have reflectivity only around 85% or something. Thermodynamics always holds, that the efficiency is never 100% :)
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.