Dale's latest activity
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Dale replied to the thread I 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. -
Dale replied to the thread I 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... -
Dale replied to the thread I 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. -
Dale reacted to Ken Fabian's post in the thread B Why would an atmosphere without greenhouse gasses be colder than with them? with
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I wonder if part of the lack of clarity is from the difference between ground heat radiating upwards and the re-radiation in all... -
Dale replied to the thread I 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... -
Dale reacted to sophiecentaur's post in the thread B Why would an atmosphere without greenhouse gasses be colder than with them? with
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Without the GHGs, radiation would pass both ways through the atmosphere with relatively little interaction (absorption or radiation and... -
Dale replied to the thread I The Einstein Clock aka Light Clock.Also, note that @Ibix said that the point is motionless, not that the source is motionless when it is at that point. -
Dale reacted to russ_watters's post in the thread B Why would an atmosphere without greenhouse gasses be colder than with them? with
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No, I don't know the mechanism. But anyway, this is a red herring. The radiation of these molecules is not a major factor here, as... -
Dale replied to the thread B Why would an atmosphere without greenhouse gasses be colder than with them?.The atmosphere is in contact with three other thermal reservoirs, the earth, the sun, and space. Earth: heat transfer is by... -
Dale reacted to sophiecentaur's post in the thread B Why would an atmosphere without greenhouse gasses be colder than with them? with
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Which bit of the Earth are you referring to? It's a thick sandwich of gas and solids (water too!) Go back to a greenhouse; which is...