Dale's latest activity
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A surface with at least one null tangent vector everywhere on it. Light cones are another example. In flat spacetime, at any instant... -
Very good points, thanks all of you for your comments. I know it took time out of your days to respond back to me, and I appreciate it...
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Here is a similar thing, Reichenbach's ##\epsilon##...
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Possibly useful (for conventions and links to references to theories and experiments)...
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Dale reacted to Ibix's post in the thread I Please explain how length contraction and time dilation result in a constant c with
Like.
You have forgotten the relativity of simultaneity, which is less popularised than length contraction and time dilation, but probably... -
##\kappa## is the thing that controls how slanted the lines in my second diagram are, IIRC.
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Dale replied to the thread A 1-Way Speed of Light.This is the OWSOL convention used in Anderson, R.; Vetharaniam, I.; Stedman, G. E. (1998), "Conventionality of synchronisation, gauge...
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I suggest that is not unique! That's just normal. In what way could that possibly be a unique characteristic of an experiment?
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Dale reacted to Asaad-Hamad's post in the thread I Can this experiment break Lorentz symmetry? with
Sad.
You are correct that in a closed cycle (e.g., accelerating and then decelerating a particle in an accelerator), the effects cancel out... -
Dale replied to the thread Site Usability nitpick -- Hyperlinks should be underlined.Greg will have to make that choice. I was just asking. As far as I can tell, government sites in the US will be required to implement...
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Dale reacted to fresh_42's post in the thread How do people explore new ideas in physics? with
Informative.
I just explained in a DM how math proofs must be read. I think it is a nice, though very simple example of why it is a big deal to... -
A little off topic, but since I alluded to Faraday's long apprenticeship with Sir Humphrey Davy that acted as bridge from self teaching...
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Dale reacted to pinball1970's post in the thread How do people explore new ideas in physics? with Like.
Damn it, I did not read this post, just the first one. Ok so my crankometer just went off a little. Comparing yourself to Faraday and...
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Sure. Physics has that pesky 'reality' thing above all, what makes a difference: those who did not prove beforehand to be able to walk...
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Dale reacted to Hornbein's post in the thread How do people explore new ideas in physics? with Like.
History says that Oliver Heaviside was self taught and did highly original and important work. But that was in the 19th century...