On Saturday, October 5, 2024 at 6:07:05 PM UTC-6 Alan Grayson wrote:
Presumably, we all know how the EP is demonstrated in an accelerating elevator, and the story of Einstein's thought experiment about a person in free fall who doesn't experience any gravitational force. But how can we trace these conclusions to EFE? If they're really guiding principles to GR, how are they manifested in EFE? TY, AG The problem I am identifying here, and likely best resolved by an historian of physics, is that the principles allegedly guiding Einstein to develop GR. namely that gravity and acceleration are equivalent if tidal forces are ignored, and that there is no gravitational force, are far from obvious when one views his field equations. It's like they reside in disjoint worlds. AG -- 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 on the web visit https://groups.google.com/d/msgid/everything-list/6c676b0f-0d04-4e63-b289-45181c0934d5n%40googlegroups.com.