Re: energy and mass

From	Bill Sloman <bill.sloman@ieee.org>
Newsgroups	sci.physics.relativity, sci.electronics.design
Subject	Re: energy and mass
Date	2026-03-21 18:26 +1100
Organization	A noiseless patient Spider
Message-ID	<10plh6t$286s8$2@dont-email.me> (permalink)
References	(20 earlier) <189e81b553d13e5d$5$626735$c2065a8b@news.newsdemon.com> <10pjmek$1kd2m$4@dont-email.me> <189e982c44fbb0e2$6$626735$c2065a8b@news.newsdemon.com> <10pl953$26c7q$3@dont-email.me> <189ec411734226d9$2$692633$c2065a8b@news.newsdemon.com>

Cross-posted to 2 groups.

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On 21/03/2026 4:28 pm, Maciej Woźniak wrote:
> On 3/21/2026 6:08 AM, Bill Sloman wrote:
>> On 21/03/2026 3:03 am, Maciej Woźniak wrote:
>>> On 3/20/2026 3:43 PM, Bill Sloman wrote:
>>>> On 20/03/2026 8:11 pm, Maciej Woźniak wrote:
>>>>> On 3/20/2026 8:55 AM, Bill Sloman wrote:
>>>>>> On 20/03/2026 5:06 pm, Maciej Woźniak wrote:
>>>>>>> On 3/20/2026 6:57 AM, Bill Sloman wrote:
>>>>>>>> On 20/03/2026 12:45 am, Maciej Woźniak wrote:
>>>>>>>>> On 3/19/2026 2:40 PM, Bill Sloman wrote:
>>>>>>>>>
>>>>>>>>>> As Galileo said, nevertheless it moves.
>>>>>>>>>
>>>>>>>>> Haven't he heard of relativity of movement?
>>>>>>>>
>>>>>>>> The concept wasn't around back then.
>>>>>>>
>>>>>>> Do you say he invented this absurd later?
>>>>>>
>>>>>> https://en.wikipedia.org/wiki/And_yet_it_moves
>>>>>>
>>>>>> The Catholic Church at the time liked to think that the earth was 
>>>>>> at the centre of the universe. 
>>>>>
>>>>> And according to relativistic idiots it's
>>>>> the one and only valid point of view for
>>>>> any earth bound observer (i.e. all of us).
>>>>
>>>> Not really.
>>
>> As usual you have chopped the text where I explained why I thought that.
> 
> A simple question, may I?
> An observer X is standing on the ground of Earth
> (anywhere). What is "the speed of Earth from the
> point of view of observer X" - according to
> the teachings of your bunch of idiots?

Relative to what?

The "fixed stars" make it clear that the earth is rotating about its 
axis every day, and we know that it is in  orbit around the sun.

We now know enough of the dynamics of our Galaxy to know that the Sun 
and its planets are in orbit around the centre of our Galaxy, and take 
about 225 million years to complete one circuit. That means that we are 
travelling at 230 km/s, approximately 1/1300th of the speed of light.

Our galaxy is on a collision path with the Andromeda galaxy and will 
probably hit it in 4.5 billion years. The speed along that path is about 
110 kilometres per second. It would be nice to know how that direction 
of travel relates to our rotation around the centre of our own galaxy, 
but I'm not going to extend my search to find out.

I don't have any propriety interest in the astronomers who work this 
sort of stuff out, and they don't seem to be any kind of bunch of 
idiots. If you weren't some kind of idiot - or at least less woefully 
ill-informed, you would have been able to work this out for yourself.

-- 
Bill Sloman, Sydney

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Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-13 09:26 +0100
  Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-13 15:08 +0100
    Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-14 09:39 +0100
      Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-15 03:37 +1100
        Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-14 21:06 +0100
        Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-17 08:42 +0100
          Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-17 23:34 +1100
            Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-19 11:32 +0100
              Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-20 00:05 +1100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-19 14:34 +0100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-20 10:45 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-20 04:21 -0700
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-21 09:28 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-23 10:32 -0700
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-25 09:10 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-25 21:31 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-26 14:33 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-27 02:03 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-26 09:33 -0700
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-26 09:49 -0700
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-26 10:26 -0700
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-27 09:25 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-28 16:23 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-29 10:24 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-29 20:55 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-25 07:20 -0700
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-21 01:19 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-20 22:43 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-21 16:01 +1100
                Re: energy and mass Gerhard Hoffmann <dk4xp@arcor.de> - 2026-03-21 11:59 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-21 13:26 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-22 02:16 +1100
          Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-19 11:01 +0100
            Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-20 00:40 +1100
              Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-19 14:45 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-20 16:57 +1100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-20 07:06 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-20 18:55 +1100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-20 10:11 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-21 01:43 +1100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-20 17:03 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-20 09:28 -0700
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-20 09:35 -0700
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-21 16:08 +1100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-21 06:28 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-21 18:26 +1100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-21 09:57 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-22 02:02 +1100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-21 16:21 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-22 05:50 +1100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-21 20:24 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-22 16:42 +1100
              Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-19 06:56 -0700
      Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-14 21:43 +0100
        Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-17 08:52 +0100
          Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-18 00:13 +1100
            Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-17 08:09 -0700
              Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-17 08:35 -0700
              Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-18 03:24 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-17 14:33 -0700
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-18 15:25 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-18 13:05 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-18 23:44 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-18 15:43 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-19 14:51 +1100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-19 07:46 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-19 18:07 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-20 13:06 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-21 02:15 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-20 08:39 -0700
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-20 08:49 -0700
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-20 22:43 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-21 16:15 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-18 07:50 -0700
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-18 08:06 -0700
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-18 08:18 -0700
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-18 08:34 -0700
            Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-18 13:05 +0100
              Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-19 00:02 +1100
            Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-19 11:45 +0100
              Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-20 01:16 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-19 22:32 +0100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-20 10:55 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-20 04:28 -0700
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-21 09:42 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-21 07:35 -0700
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-22 10:45 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-22 21:24 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-23 08:48 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-23 21:25 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-23 08:07 -0700
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-24 17:56 +1100
                Re: energy and mass Gerhard Hoffmann <dk4xp@arcor.de> - 2026-03-24 10:20 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-24 05:46 -0700
                Re: energy and mass Jeroen Belleman <jeroen@nospam.please> - 2026-03-24 19:25 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-24 12:44 -0700
                Re: energy and mass Jeroen Belleman <jeroen@nospam.please> - 2026-03-24 21:41 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-24 14:12 -0700
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-24 23:28 +0100
                Re: energy and mass Jeroen Belleman <jeroen@nospam.please> - 2026-03-24 23:29 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-24 19:55 -0700
                Re: energy and mass Jeroen Belleman <jeroen@nospam.please> - 2026-03-25 09:36 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-25 07:25 -0700
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-26 02:25 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-26 14:11 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-27 02:10 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-26 08:47 -0700
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-25 13:33 +0100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-25 13:45 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-25 17:50 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-22 08:13 -0700
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-25 08:46 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-25 21:21 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-26 14:29 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-27 02:27 +1100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-22 01:41 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-20 13:06 +0100
                Re: energy and mass liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-03-20 12:57 +0000
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-21 09:53 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-21 13:26 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-21 02:36 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-22 10:15 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-22 21:38 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-23 08:58 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-23 21:45 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-22 08:16 -0700
                Re: energy and mass liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-03-22 21:23 +0000
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-22 14:51 -0700
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-23 16:54 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-03-23 12:05 -0700
          Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-03-18 13:05 +0100
  Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-14 03:34 +1100
    Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-14 10:18 +0100
      Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-14 02:58 -0700
      Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-15 03:41 +1100

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