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bio website cedrich.net
location Geneva, Switzerland
age 28
visits member for 3 years, 10 months
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Nov
21
comment Gravity and Collision of two continuous mass distributions
@Rajesh: At first your question was not clear at all... I interpreted by "point mass" a geometrical point affected with a mass. A classical scattering problem like the one of a charged point-like particle.
Nov
20
comment Gravity and Collision of two continuous mass distributions
I think you are all going too far with this black hole thing, my opinion is that he is just asking the different between the scattering of point-like particles and the scattering of spheres; this can be treated due to gravitational or electrostatic interactions (if the spheres are charged). No big deal with GR. Unless the question is very very strange ...
Nov
19
comment Wi-Fi in the presence of very strong magnets?
The frequencies at least have to be in a similar range.
Nov
18
comment Can a superconducting wire conduct unlimited current?
"A superconductor also expels all magnetic fields from inside itself (Meissner effect)," This is true only for type I SC or for type II below the first critical field. Usually magnets are type II operating between the critical fields, in that case the field penetrates the material partially.
Nov
18
comment Can a superconducting wire conduct unlimited current?
"A superconducting magnet quench can produce a sizeable explosion!" True but this has nothing to do with superconductivity itself.
Nov
17
answered How relevant is LHC to quantum gravity?
Nov
17
revised How relevant is LHC to quantum gravity?
Tags
Nov
17
comment What makes a space a real space?
When I am talking to my mother I don't use the word "space" and when I am solving a physical problem I formulate it mathematically... What's the difference between your question and "Why would we interpret something that seems to move as something really moving ?" ?
Nov
17
comment What makes a space a real space?
Real space if not a very well defined concept: we just use it when we want to distinguish from another space we are using, like reciprocal space.
Nov
17
revised Amount of 2 amperage
Latex
Nov
17
comment What makes a space a real space?
Please stop with this "philosophy" tag: either your question is a valid question about physics as a science and it doesn't need this tag or this is not a valid question and it should be closed.
Nov
17
comment Is it possible/correct to describe electromagnetism using curved space(-time)?
The answer of Eric is really interesting and correct and explain that in their general form, Maxwell equations can be applied in the case of a curved space-time. But I think the question was: the basic gravitational potential is similar to the electrostatic one, so can we describe electromagnetism using general relativity. As you accepted the answer, you should maybe modify to question to make things clear.
Nov
16
comment Why is there something rather than nothing?
This question should be closed...
Nov
16
comment Does this statement make any sense?
@Stefano: Well done but I think it is useless to argue more with that kind of people :p
Nov
16
revised What is needed to claim the discovery of the Higgs boson?
added 303 characters in body; edited tags
Nov
15
comment Does this statement make any sense?
@David: I guess it would be valid but really strange.
Nov
15
comment Meaning and application of convolution or deconvolution in physical sciences
I think this question is too broad to be answered correctly. We will just have an endless list ... Why are you asking ?
Nov
15
answered Does this statement make any sense?
Nov
15
answered Energy of the electron-muon reaction
Nov
15
answered What is the direction of the friction force on a rolling ball?