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seen Jul 18 at 18:21

Feb
17
awarded  Informed
Feb
17
accepted Does Kaluza-Klein Theory Require an Additional Scalar Field?
Feb
17
comment Does Kaluza-Klein Theory Require an Additional Scalar Field?
Why is $g_{55}$ necessarily a scalar field? What's the motivation to promote it from being a constant to a field? Is it just because a 5th dimension with variable size is more general?
Feb
17
comment Does Kaluza-Klein Theory Require an Additional Scalar Field?
My sources are: weylmann.com/kaluza.pdf math.arizona.edu/~vpiercey/KaluzaKlein.pdf I'm not sure why you say applying the the action principle on the 5D Ricci scalar naturally implies an additional field. When considering the second form of the metric in my OP, isn't the Ricci scalar just: $\tilde{R}=R+\frac{k}{4}F^{\mu \nu}F_{\mu \nu }$ If $k$ is a constant I don't see how that implies a scalar field.
Feb
17
answered How do you calculate angle of projection?
Feb
17
asked Does Kaluza-Klein Theory Require an Additional Scalar Field?
Feb
17
revised Faraday's Law and Galilean Invariance
added 102 characters in body
Feb
17
answered Faraday's Law and Galilean Invariance
Feb
15
answered Plotting the maxwell-Boltzmann velocity distribution in matlab
Feb
15
comment Can energy be defined as the most fundamental particle which exists in different forms as protons, electrons etc
Photons are no more fundamental than any other elementary particle.
Feb
15
comment Can energy be defined as the most fundamental particle which exists in different forms as protons, electrons etc
Photons, with energy equal to the electron's + the positron's.
Feb
15
answered Can energy be defined as the most fundamental particle which exists in different forms as protons, electrons etc
Feb
14
answered Second law of Newton for variable mass systems
Feb
11
answered Confused over complex representation of the wave
Feb
11
revised What is the relationship between the radius of a ring in a rotating space station and the strength of the artificial gravity generated?
added 420 characters in body
Feb
11
awarded  Teacher
Feb
11
answered What is the relationship between the radius of a ring in a rotating space station and the strength of the artificial gravity generated?
Feb
10
awarded  Scholar
Feb
10
accepted Kaluza-Klein Christoffel Symbols
Feb
10
comment Kaluza-Klein Christoffel Symbols
Perfect! Silly mistake on my part, thanks for your help.