Mike_bb's latest activity
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MMike_bb replied to the thread Undergrad Reciprocal time dilation on the example with two moving trains.Ibix, It's easier than you think. The train A are moving towards train B (parallel motion). Passenger in carriage 1 of train A records...
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MMike_bb replied to the thread Undergrad Reciprocal time dilation on the example with two moving trains.What will happen when passenger in carriage 2 of train A and passenger in carriage 2 of train B record measurements of clocks? What...
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MMike_bb reacted to Ibix's post in the thread Undergrad Reciprocal time dilation on the example with two moving trains with
Like.
I don't think there's enough information to answer. This is why the homework forums require a complete statement of the problem, because... -
MMike_bb replied to the thread Undergrad Reciprocal time dilation on the example with two moving trains.This mean that clocks in the carriage 1 of Train A show 2sec while clocks in the carriage 2 of Train B show 1.9sec (time dilation).
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MMike_bb posted the thread Undergrad Reciprocal time dilation on the example with two moving trains in Special and General Relativity.Hello! Let we have two trains: A,B and the clocks are in carriages. Train A is moving towards train B. Trains are moving parallel to...
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MMike_bb replied to the thread High School Can anyone deeply understand relativity?.Nice answer! It's an example that persistent matters. "It's not that I'm so smart, it's just that I stay with problems longer" Albert...
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MMike_bb reacted to Dale's post in the thread High School Can anyone deeply understand relativity? with
Informative.
My “aha moment” came when I drew my first spacetime diagram complete with coordinate lines for both frames via the Lorentz transform... -
MMike_bb reacted to Matterwave's post in the thread Undergrad Why does coordinate dependence violate homogeneity in spacetime intervals? with
Agree.
It's a bit loose. I would simply say: if space and time are homogeneous then we can conclude that ##a## in ##ds^2=ads'^2## does not... -
MMike_bb replied to the thread Undergrad Why does coordinate dependence violate homogeneity in spacetime intervals?.Thx. Does my post #20 contain true reasoning?
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MMike_bb reacted to Matterwave's post in the thread Undergrad Why does coordinate dependence violate homogeneity in spacetime intervals? with Like.
You need only homogeneity to show that ##a## does not depend on coordinates. You use isotropy to show that ##a## can only depend on the...
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MMike_bb reacted to Sagittarius A-Star's post in the thread Graduate Is photon frequency intrinsic or observer-dependent? with Like.
Yes, because it is massless.
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MMike_bb replied to the thread Undergrad Why does coordinate dependence violate homogeneity in spacetime intervals?.Ibix, What do you think about following reasoning? If the space is homogeneity and isotropy we can use the fact that arbitrary point...
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MMike_bb reacted to Ibix's post in the thread Undergrad Why does coordinate dependence violate homogeneity in spacetime intervals? with Like.
Apologies, I've reused the prime for something and confused myself about what you were asking. Restating my argument, consider two...
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MMike_bb replied to the thread Undergrad Why does coordinate dependence violate homogeneity in spacetime intervals?.I'm already starting to doubt that this is true. But I thought following way: if we have ##dx_1## and ##x_1+dx_1##; ##dx_2## and...
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MMike_bb replied to the thread Undergrad Why does coordinate dependence violate homogeneity in spacetime intervals?.If it so then why do we need proof L&L?