12,505 reputation
42971
bio website inpursuitoflaziness.blogspot.…
location Mumbai, India
age 20
visits member for 2 years, 7 months
seen 16 hours ago

I am an engineering physics student who loves the sciences.

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Jan
12
comment Is it possible to split baryons and extract useable energy out of it?
@DavidZ Oops, forgot to mention that. Thanks, fixed
Dec
28
comment Really nothing special when falling into a black hole?
I'm a bit fuzzy on this though, it would be best if someone more experienced answered :)
Dec
28
comment Really nothing special when falling into a black hole?
@MartinDrautzburg from here "In terms of visual appearance, observers who fall into the hole perceive the black region constituting the horizon as lying at some apparent distance below them, and never experience crossing this visual horizon". The falling observer does cross a "point of no return", but that point is nothing special otherwise. But from their point of view (moving frame), light particles ahead of them have a different point of no return.
Dec
28
comment Really nothing special when falling into a black hole?
@MartinDrautzburg Well, the other thing is that from the observer's point of view, the true event horizon always lies below him. When he passes the externally visible event horizon, nothing special happens.
Dec
28
comment What happens when a charged (negative or positive) object touches an insulator?
To be precise I interpreted it correctly, but in the midst of writing an answer I mentally switched "insulator" with "conducting shell"
Dec
28
comment What happens when a charged (negative or positive) object touches an insulator?
Ah, oops, I misinterpreted the question.
Dec
28
comment What happens when a charged (negative or positive) object touches an insulator?
A battery is not a source of charge. It creates potential difference and is capable of separating charge, but the battery terminals are uncharged (almost). Also, charges do spread over the surface of insulators as well.
Dec
28
comment Transforming a lagrangian to hamiltonian and vice versa
@NickKidman I can try, but it really seems like you're in a better position to write an answer like that :P
Dec
28
comment How are anyons possible? (another version)
<comments deleted> Please try to use a Physics Chat room or similar to hold lengthy discussions.
Dec
27
comment Exactly how much lift is needed to overcome the weight of an average person?
@User58220 The kilogram. In the case of the fps system, as I was taught, pound is a unit of force (weight) and there is no corresponding fps mass unit
Dec
27
comment Book on optics in curved space-time
@Dilaton yes. Try to improve the question up to plicy before flagging, though.
Dec
27
comment Book on optics in curved space-time
Cleaned up and reopened due to change of policy.
Dec
27
comment Exactly how much lift is needed to overcome the weight of an average person?
@User58220 My bad, you're correct, the pound is a unit of mass. Strange; I was explicitly taught that the pound was a unit of weight and not mass.
Dec
27
comment Exactly how much lift is needed to overcome the weight of an average person?
@User58220 Nope. Pound is a unit of weight, kilogram is a unit of mass. The metric system's corresponding unit of weight is kilogram-force, though you can of course use Newton.
Dec
18
comment How do voltage and voltage drops over a circuit relate to work done?
@user1299028 The current changes. Don't draw parallels with mechanics, voltage doesn't work that way.
Dec
18
comment How do voltage and voltage drops over a circuit relate to work done?
@user1299028 A potential difference of 10V does not exert the same force. You're thinking about electric field. A potential difference of 10V is defined to be such that the work done does not change. (Well, not exactly,it is defined as a line integral, but it turns out to be conservative for curl-less fields)
Dec
18
comment How do voltage and voltage drops over a circuit relate to work done?
@user1299028 Yes.
Dec
18
comment Is voltage important when creating a magnetic field?
"I must increase the voltage"-- to do what?
Dec
16
comment What happens when a black hole dies?
Black holes do die, but gradually. Your question is a bit scattered, please try to ask only one question per post.
Dec
6
comment Momentum conservation problem
I meant that you should edit that into the answer :) Comment are temporary.