On Thursday, January 30, 2025 at 6:48:21 AM UTC-7 Jesse Mazer wrote:
On Thu, Jan 30, 2025 at 12:51 AM Alan Grayson <agrays...@gmail.com> wrote: On Wednesday, January 29, 2025 at 6:52:47 PM UTC-7 Brent Meeker wrote: Whooo! Hoooo! Brent Another fool who doesn't get it? Another fool who can't think out of the box? Jesse claims that the LT preserves what it predicts for local events AND, according to his lights, using the LT it can be shown that lengths are EXPANDED. OTOH, it's universally predicted that lengths are CONTRACTED under the LT. No, it's universally predicted that length in a frame where an object is *in motion* (coordinate-motion using the term I coined in my previous comment, to distinguish from your alternate non-standard usage which I called 'designated-motion') is contracted relative to that object's "proper length" in the frame where the object is *at rest* (coordinate-rest), the L in the length contraction equation is always stated to be the proper length. So, if you use the LT to transform FROM the frame where the object is in motion (coordinate-motion) TO the frame where the object is at rest (coordinate-rest), treating the coordinate-motion frame as what you call the "source frame" and the coordinate-rest frame as what you call the "target frame" for the LT, in this case the length should be contracted in the source frame and larger in the target frame, *So, after our exhausting discussion, you still have no clue what I meant by source and target frames. I never said anything about a LT from a frame where the object is in motion. I alway stated I was transforming FROM a rest frame to a moving frame. Is there any textbook which makes your claim? I've never seen it, or heard about it, or hinted about it, and for this reason I ignored your mathematics. AG* that's all that I meant when the LT can sometimes predict an expanded length in the target frame (expanded relative to length in the source frame, not relative to the object's proper length). And I explicitly showed you the math (just some basic algebra!) to demonstrate that this is the case in the post at https://groups.google.com/g/everything-list/c/ykkIYDL3mTg/m/giZVF9PpDQAJ which you ignored. Of course I have already clarified this point many times, so I'm guessing you won't actually consider my clarification thoughtfully and will just keep repeating your same cliched phrases as if I hadn't said anything. Jesse -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/everything-list/184d8a24-9885-4615-a443-45cec3c3f2bcn%40googlegroups.com.
