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robphy reacted to Dale's post in the thread Undergrad How does reciprocal time dilation work? with
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This is an incomplete sentence. You have named two events, so you have the subject of the sentence, but not the verb. Please use... -
robphy replied to the thread Undergrad How does reciprocal time dilation work?.Here's my graphical attempt to help you @Mike_bb . After a summary-and-diagram, there is a second diagram with an exercise for you to... -
robphy replied to the thread Undergrad How does reciprocal time dilation work?.I think you need to write out... I'm going to use "reads" to avoid possible misinterpretations when using anything suggesting what it... -
robphy reacted to Dale's post in the thread Undergrad How does reciprocal time dilation work? with
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Have you completed the figure I described above? Please post it... -
robphy replied to the thread High School Uncertain about part of the Order of Operations, from a formula.If these quantities are associated with units, inserting the units could help clarify the order of operations. -
robphy reacted to Matterwave's post in the thread Undergrad How does reciprocal time dilation work? with
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If I had an "a-ha" moment for special relativity, it was after learning General Relativity. Specifically chapter 8 in Wald on causal... -
robphy reacted to Dale's post in the thread Undergrad How does reciprocal time dilation work? with
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I would say the radar coordinates are the realistic ones for that reason and the standard coordinates are the idealized ones for that... -
robphy replied to the thread Undergrad How does reciprocal time dilation work?.Once I have defined a light-clock diamond (in my local region), and make reasonable assumptions of homogeneity and isotropy, I can... -
robphy replied to the thread Undergrad How does reciprocal time dilation work?.Here are operational definitions using a radar method (which was my "a-ha moment"[1][2] in relativity). To assign coordinates to a... -
robphy replied to the thread Cover songs versus the original track, which ones are better?.Black Sabbath (1970) https://en.wikipedia.org/wiki/Black_Sabbath_(song) https://en.wikipedia.org/wiki/Black_Sabbath_(album)... -
robphy replied to the thread Undergrad How does reciprocal time dilation work?.This comment complements the recent comment by @Matterwave , as well as directly connect to your recent calculation. This is exactly... -
robphy replied to the thread Undergrad How does reciprocal time dilation work?.A geometric analogy may be useful here. Consider two radius vectors to a circle, then consider their tangent-lines. (See below.) An... -
robphy replied to the thread Cover songs versus the original track, which ones are better?.Run to the Hills (1982) https://en.wikipedia.org/wiki/Run_to_the_Hills https://en.wikipedia.org/wiki/Iron_Maiden (1982) Run To The... -
robphy replied to the thread Undergrad Reciprocal time dilation on the example with two moving trains.Here's a spacetime diagram drawn on rotated graph paper. (All light-clock-diamonds have the same area and all light-clock-diamonds have...










