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Topics	Replies	Views	Last post
Physics, Astronomy & Cosmology \ Can we talk about a "Speed of Causality"? Started by geordief	1	187	Last post by yor_on 02/07/2019 10:49:51
Physics, Astronomy & Cosmology \ Is "Space" distinct from "nothingness"? (and the Vacuum) Started by geordief	36	1190	Last post by flummoxed 30/06/2019 22:47:32
Physics, Astronomy & Cosmology \ Is there a speed of propagation of energy? Started by geordief	5	399	Last post by jeffreyH 24/06/2019 22:30:40
Physics, Astronomy & Cosmology \ Does the Universe expand into itself? Started by geordief	0	195	Last post by geordief 12/06/2019 00:48:30
Physics, Astronomy & Cosmology \ What if the Earth was twice as massive? Started by geordief	21	630	Last post by Halc 10/06/2019 00:27:59
Physics, Astronomy & Cosmology \ What causes relative motion? Started by geordief	12	269	Last post by yor_on 03/06/2019 08:20:04
Physics, Astronomy & Cosmology \ Is spacetime always understood in relation to the speed of light (em radiation)? Started by geordief	24	719	Last post by Halc 22/05/2019 20:25:33
Physics, Astronomy & Cosmology \ Is the magnetic field in a particle accelerator static or dynamic? Started by geordief	2	314	Last post by evan_au 07/05/2019 21:00:59
Physics, Astronomy & Cosmology \ Does a photon travel the whole (ie continuous) length of its path? Started by geordief	2	270	Last post by Halc 30/04/2019 14:49:38
Physics, Astronomy & Cosmology \ What is an "event" ? Started by geordief	64	2054	Last post by PmbPhy 08/04/2019 20:26:11
Physics, Astronomy & Cosmology \ Is there a zero sum energy theory of the universe? Started by geordief	7	574	Last post by yor_on 21/01/2019 11:10:43
Physics, Astronomy & Cosmology \ When does a Black Hole form? Started by geordief	2	547	Last post by evan_au 04/01/2019 07:24:04
Physics, Astronomy & Cosmology \ Does acceleration (also) curve spacetime? Started by geordief	8	707	Last post by Halc 03/01/2019 18:15:52
Physics, Astronomy & Cosmology \ Is time dilation rigorously predicted from first principles? Started by geordief	8	740	Last post by phyti 02/01/2019 18:39:59
Physics, Astronomy & Cosmology \ Can we say a bit about fields in physics? Started by geordief	3	499	Last post by Colin2B 27/11/2018 06:29:42
Physics, Astronomy & Cosmology \ Can a model merge with the "modeled"? Started by geordief	7	851	Last post by geordief 08/09/2018 10:12:27
Physics, Astronomy & Cosmology \ Are there any ways to show whether nature is fundamentally continuous/discrete? Started by geordief	10	951	Last post by yor_on 07/09/2018 05:26:11
Physics, Astronomy & Cosmology \ Has permittivity had the same value over the observed lifetime of the universe? Started by geordief	13	1147	Last post by geordief 27/08/2018 18:51:30
Physics, Astronomy & Cosmology \ Why is energy observer dependent? Started by geordief	37	2052	Last post by yor_on 29/06/2018 23:57:51
Physics, Astronomy & Cosmology \ What is a tensor? Started by geordief	49	2665	Last post by jeffreyH 19/04/2018 16:55:11