Dale's latest activity
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Well, you have claimed counterfactual things (e.g., that aberration does not apply) multiple times in this thread, so we do need to... -
Dale reacted to Herman Trivilino's post in the thread Undergrad The Einstein Clock aka Light Clock with
Like.
What is the reason you are studying this paper? Are you trying to understand the physics? Or are you trying to understand the physics... -
Idealising the emission to a single event, that event is independent of the state of motion of the source (note that this is an...
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PS note that it is the speed of light that is independent of the motion of the source. Not the velocity of light, which is a vector and...
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Dale replied to the thread Undergrad The Einstein Clock aka Light Clock.Yes, there is a problem. The problem is here: That is false. The source of light is current and charge densities, as described by...
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Dale reacted to Johndough_'s post in the thread Undergrad Does a person's mass affect time? with Like.
Thank you, this makes sense. -John
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Dale replied to the thread Undergrad Instantaneous electric field solved by extended electrodynamics?.There is not a problem with causality in standard electromagnetism, as has been amply demonstrated in your previous threads. Thread closed.
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Dale replied to the thread Undergrad About the notion of non-standard inertial frame.Same there. Different authors will have different meanings for what charts they consider to be inertial. For example, some will...
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Dale replied to the thread Undergrad About the notion of non-standard inertial frame.I think that the term “inertial frame” means what the author using the term defines it to mean. There are variations in the literature.
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Dale reacted to Ken Fabian's post in the thread High School Why would an atmosphere without greenhouse gasses be colder than with them? with Like.
I wonder if part of the lack of clarity is from the difference between ground heat radiating upwards and the re-radiation in all...
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Thought of an easy way to do it. Change the mirror for an absorber. When it is struck by the light, it absorbs it and gains energy...
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They are not. I strongly suggest you use the Lorentz transforms to express the first equation in terms of primed quantities. You will...
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Dale replied to the thread Undergrad The Einstein Clock aka Light Clock.Note that the two halves of this sentence do not say the same thing. The last half says you cannot detect absolute motion. But the first...
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It's not symerical, because the light source is at rest in one frame, but not the other. Motion relative to some random light source...
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Dale reacted to PeterDonis's post in the thread Undergrad The Einstein Clock aka Light Clock with Like.
What else would be involved? No, they don't. The source can only be motionless with respect to one of them. Until you fix this...