On Sunday, April 21, 2019 at 8:07:28 PM UTC-6, Brent wrote: > > > > On 4/21/2019 6:31 PM, [email protected] <javascript:> wrote: > > *Here's something odd. At 9:45 in Susskind's Lecture 2 on GR, he says the > metric tensor is a Kronecker delta function. But I could swear that the > diagonal of -1,1,1,1 represents flat space in SR. AG * > > > What's odd about that? Flat space is just special case of curved space in > which the curvature is zero. > > Brent >
*Sure, but he seems to be saying that the Kronecker delta is the metric tensor for curved space. Isn't that how you interpret his comment? 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 post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
