12,445 reputation
42971
bio website inpursuitoflaziness.blogspot.…
location Mumbai, India
age 20
visits member for 2 years, 7 months
seen 9 hours ago

I am an engineering physics student who loves the sciences.

enter link description here


Nov
19
comment Why does a helium filled ballon move forward in a car when the car is accelerating?
Please do not have long comment discussions on the main site. Feel free to continue this by creating a room in Physics Chat.
Nov
19
comment Why does a helium filled ballon move forward in a car when the car is accelerating?
Pranav, please be nice.
Nov
17
comment If time travel to the past is not possible why is this situation considered in Feynman diagrams?
@DavidH IIRC The idea that all electrons are the same electron has been ruled out, however the idea that a positron can be viewed as a backward-in-time electron is still around. I think, but not used much.
Nov
15
comment Please recommend a good book about physics for young child (elementary school aged)
Just a note: This is being closed for now, but since we have a new policy about recommendation qs that was recently released, we need to discuss how to handle the old questions.
Nov
12
comment Cooling a cup of coffee with help of a spoon
Note: You've been mentioned in the latest what-if xkcd.
Nov
8
comment How did neodymium magnets get their name?
@Eiver "rare earth metals" refers to the lanthanides and actinides. Boron is not a rare earth. Nd is the one with special properties.
Nov
7
comment Understanding the Wave Function and Excited States
@Programmer Mattia is correct here, if you solve the equation you may get all possible eigenstates, but a given solution is a single state. Superpositions are states too, even if not eigenstates.
Nov
6
comment Infinite Mirror Face to Face With Infinite Two Way Mirror
@Dimension You know very well that the popsci tag only applies to questions where the asker explicitly mentions that he wants laymanized answers. Please do not misuse it, otherwise the tag will be removed without further ado as mentioned in the past
Nov
5
comment Can one do the maths of physics without using $\sqrt{-1}$?
That is a great idea (FWIW, it's fine to quote it in every answer if you want, but cross linking works perfectly). As long as each answer has a modicum of uniqueness (after all, the questions are unique so the answers probably should be too), it's fine :)
Nov
4
comment If there were no space between nuclei, how big would the Earth be?
@coffee We aren't a discussion site. We have quite a few rules on which types of questions we allow (see tour, help center, and How to Ask). It's OK to raise doubt about the suitability of the question for the site, as long as it is done constructively.
Nov
4
comment If there were no space between nuclei, how big would the Earth be?
@Val Hints are OK, but try to be nicer when giving hints.
Nov
4
comment Formulation and probability of a wave-function
@DIMension10 Read the first paragraph (the tldr) of the homework policy.
Nov
4
comment Does antimatter curve spacetime in the opposite direction as matter?
@TobiasKienzler don't see how we would get inflation from that, inflation seems to come from the inside with each galaxy flying away from the others. But it's an interesting idea.
Nov
4
comment Does antimatter curve spacetime in the opposite direction as matter?
@TobiasKienzler Trudat. I don't see why it would be a far shot though, negative gravitational mass attracts negative gravitational mass if the inertial masses are the same. Pretty reasonable for clumping to occur, if the separation happened early on.
Nov
4
comment Does antimatter curve spacetime in the opposite direction as matter?
@TobiasKienzler Ah, good point. I usually look at these thing from the theoretical POV, since in the standard model and all we do not ascribe negative energies to these. Then again, that doesn't entirely exclude a negative gravitational mass.
Nov
4
comment Is this pseudo science or real: code found in superstring
/cc @JohnRennie ^^
Nov
4
comment Is this pseudo science or real: code found in superstring
@DIMension10 see meta.physics.stackexchange.com/q/4918; the answer is good, but just a video doesn't make for a good question.
Nov
4
comment Is this pseudo science or real: code found in superstring
...or it could be reopened right now as well; that's fine, but please substantiate the question with some description of what is going on in the video.
Nov
4
comment Is this pseudo science or real: code found in superstring
Not really sure if it should be opened, yet. @Muhammad, if you could edit some description of what is being talked about in the video, that would be great. I already linked to the arXiv paper, which lends some credence to the question/theory.
Nov
4
comment Does antimatter curve spacetime in the opposite direction as matter?
@abhishek when Dirac first discovered antimatter, he modelled it as holes inthe topmost filled state of negative energy states stretching infinitely down, which are already all filled by "ghost electrons"