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Groups > sci.physics > #835165
| From | whodat <whodaat@void.nowgre.com> |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially |
| Date | 2021-11-06 10:35 -0500 |
| Message-ID | <iunlmnF2bj3U2@mid.individual.net> (permalink) |
| References | <7c54e8c0-b0c6-4cb6-a853-52563e24c656n@googlegroups.com> <a595d7ea-7d07-4027-897a-464bf5cad9dbn@googlegroups.com> |
Even in this, Arindam Banerjee, you are out of your depth. On 11/6/2021 7:49 AM, Arindam Banerjee wrote: > On Saturday, 6 November 2021 at 09:24:17 UTC+11, Giovanni wrote: >> Bob is in the center of the station and Alice is in the center of the train. >> >> When the train crosses the station and Bob is directly in front of Alice, two lightning strikes hit the head and tail of the train. >> >> Bob tells Alice: >> >> - two lightning strikes simultaneously hit the train, but not for you, because you, advancing together with the train, first saw the luminous wave front arriving from the head of the train and then the one starting from the tail of the train. > > If they indeed strike simultaneously in absolute galactic time, yes. The front wave would effectively move faster towards Alice with speed c+v, with the Doppler effect. And the back wave at c-v. >> >> Alice tells Bob: >> >> - you are crazy, look that although I was sleeping at that moment, I am able to prove you wrong, and in fact when the two lightning strikes woke me up, I went to examine the charred dead canary in the cage placed at the head of the train, and the dead canary charred in the cage placed at the end of the train, well, both were dead at the same time. > > No difference from Bob's observation. When the lightning struck simultaneously, it would kill the birds at once, but as the light wave moves faster from one end and slower from the other, Alice would PERCEIVE that it first struck the front of the train. > > Perception does not provide reality, as any number of psychology tests show. > > All events are either synchronous or sequential. When we are aware of movement, we have to make adjustments for the correct sequencing. Thus an event in Kolkata at 8:00 pm happens *after* something happens here at say 11:47 pm. Simple school level geography lesson! >> >> Giovanni from Italy.
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Einstein's 1905 nonsense about simultaneity highlighted even more trivially Giovanni <giannifree@gmail.com> - 2021-11-05 15:24 -0700
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Sylvia Else <sylvia@email.invalid> - 2021-11-06 10:14 +1100
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially whodat <whodaat@void.nowgre.com> - 2021-11-05 18:17 -0500
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Giovanni <giannifree@gmail.com> - 2021-11-05 17:55 -0700
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Giovanni <giannifree@gmail.com> - 2021-11-05 17:38 -0700
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Michael Moroney <moroney@world.std.spaamtrap.com> - 2021-11-05 23:40 -0400
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Giovanni <giannifree@gmail.com> - 2021-11-06 02:32 -0700
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Sylvia Else <sylvia@email.invalid> - 2021-11-06 21:56 +1100
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Giovanni <giannifree@gmail.com> - 2021-11-06 04:14 -0700
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Giovanni <giannifree@gmail.com> - 2021-11-06 04:39 -0700
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Giovanni <giannifree@gmail.com> - 2021-11-06 04:48 -0700
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Sylvia Else <sylvia@email.invalid> - 2021-11-07 09:20 +1100
Einstein's relativity confuses country folk. Jeff-Relf.Me @. - 2021-11-06 15:46 -0700
Re: Einstein's relativity confuses country folk. The Starmaker <starmaker@ix.netcom.com> - 2021-11-06 21:21 -0700
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Giovanni <giannifree@gmail.com> - 2021-11-07 04:20 -0800
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Michael Moroney <moroney@world.std.spaamtrap.com> - 2021-11-06 13:19 -0400
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Arindam Banerjee <banerjeeadda1234@gmail.com> - 2021-11-06 05:49 -0700
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially whodat <whodaat@void.nowgre.com> - 2021-11-06 10:35 -0500
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Arindam Banerjee <banerjeeadda1234@gmail.com> - 2021-11-06 13:24 -0700
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2021-11-06 10:27 -0700
Re: Einstein's 1905 nonsense about simultaneity highlighted even more trivially Giovanni <giannifree@gmail.com> - 2021-11-08 01:06 -0800
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