On Saturday, July 4, 2020 at 7:51:04 AM UTC-6, John Clark wrote: > > On Fri, Jul 3, 2020 at 8:41 PM Alan Grayson <[email protected] > <javascript:>> wrote: > > *> Supposedly, the EP gave Einstein his key insight for GR, but his >> November 1915 doesn't reference it, not once! AG* >> > > Einstein didn't need to spell it out because he found a tensor to describe > how things move through spacetime, and tensors by their very mathematical > nature are frame indifferent, if a tensor works in one reference frame it > will work in any reference frame. And in scientific papers it's not > customary to give a history of the evolution of your thought process or > anecdotes about how you happen to come up with your idea, you just state > your idea and then make suggestions about how it could be tested. > > John K Clark >
*I generally agree with your comment about the style of scientific papers even though motivating comments for specific theories are not unheard of. However, tensors are inherently independent of coordinate systems, and any theory of gravity, indeed any theory of nature, must be written in tensor form to preserve this independence. What has this to do with the Equivalence Principle? TIA, 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/9461a228-fa9c-401f-ac17-955429dfd8aao%40googlegroups.com.
