On Sunday, March 23, 2025 at 5:18:37 AM UTC-6 John Clark wrote:
On Sun, Mar 23, 2025 at 4:07 AM Alan Grayson <[email protected]> wrote: *> What exactly is waving, space or spacetime,* *Spacetime. So if you detect a variation in space caused by a gravitational wave** then you can use Einstein's equations to figure out what the variation in time must've been, and if you detect a variation in time you can figure out what the variation in space must be. **As Einstein's teacher Hermann Minkowski said*:* "Henceforth space by itself, and time by itself, are doomed to fade away into mere shadows, and only a kind of union of both will retain an independent reality".* *John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* Interesting. I keep thinking of spacetime as one thing which is measured, but that's really not the case. Generally speaking, what are the wave lengths of those space variation waves, and how are they measured? AG 2 idr -- 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 [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/5431d80e-d886-4547-a071-a0e3e41cea3bn%40googlegroups.com.
