Russell; this is directed to you, primarily, since I am confident you can answer this question with ease. If a test particle is at rest from the perspective of some reference frame, it's claimed that this test particle is moving at velocity c along the time axis. But what exactly does this mean? And more important how is this possible since SR establishes that no material particle can move at exactly velocity c? TY, 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 visit https://groups.google.com/d/msgid/everything-list/cb6fd408-a8d5-4a29-a143-364dc4517ab2n%40googlegroups.com.

