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Re: energy and mass

From DJ Delorie <dj@delorie.com>
Newsgroups sci.physics.relativity, sci.electronics.design
Subject Re: energy and mass
References (10 earlier) <fk8sok1t8vbe7r6nhgl5v8eidkl7mnbcns@4ax.com> <mass-20260212201526@ram.dialup.fu-berlin.de> <xna4xdit4q.fsf@delorie.com> <photons-20260212222813@ram.dialup.fu-berlin.de> <10mlq9b$h4me$1@gwaiyur.mb-net.net>
Date 2026-02-12 20:59 -0500
Message-ID <xn5x81iets.fsf@delorie.com> (permalink)

Cross-posted to 2 groups.

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So... a photon moving at speed of light has some
energy-mass-whatever-equivalent, which is sufficient to warp spacetime.
That change may cause other photons' paths to "bend" as if gravity were
a force, regardless of time effects, because it's not a force, it's a
shape.

I think I got that part [*].

I wonder, though, if there were some non-spacetime actual "force"
between photons (I realize there isn't, but imagine one for a moment).
If said force obeyed the usual F=ma, *now* would time dilation come into
play wrt photons?  Two photons travelling next to each other, from their
point of view (or any other), how would that force evolve itself over
"time" ?

(yeah, stupid question maybe, but I still find the answers aka
discussions interesting ;)


[*] except if photons move at the speed of light, and "gravity" does
    too, do photons create gravitational shock waves as they travel?  Or
    does the distortion just travel happily along with the photon?  Or
    just behind it?  How could we find out?

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usenet weirdness john larkin <jl@glen--canyon.com> - 2026-02-09 09:48 -0800
  Re: usenet weirdness John Robertson <jrr@flippers.com> - 2026-02-09 10:59 -0800
  Re: usenet weirdness Glen Walpert <nospam@null.void> - 2026-02-09 19:32 +0000
    Re: usenet weirdness john larkin <jl@glen--canyon.com> - 2026-02-09 13:50 -0800
  Re: usenet weirdness DJ Delorie <dj@delorie.com> - 2026-02-09 16:02 -0500
    Re: usenet weirdness ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-09 21:43 +0000
    Re: usenet weirdness john larkin <jl@glen--canyon.com> - 2026-02-09 13:55 -0800
  Re: usenet weirdness Martin Brown <'''newspam'''@nonad.co.uk> - 2026-02-10 10:30 +0000
    Re: usenet weirdness john larkin <jl@glen--canyon.com> - 2026-02-10 07:42 -0800
      conservation laws (was: usenet weirdness) ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-10 16:56 +0000
      Re: usenet weirdness Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-02-10 20:22 +0000
        energy and mass (was: usenet weirdness) ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-10 20:32 +0000
          Re: energy and mass Martin Brown <'''newspam'''@nonad.co.uk> - 2026-02-10 21:36 +0000
            Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-11 02:11 +0100
          Re: energy and mass (was: usenet weirdness) Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-02-10 22:42 +0000
            Re: energy and mass (was: usenet weirdness) john larkin <jl@glen--canyon.com> - 2026-02-10 15:40 -0800
        Re: usenet weirdness john larkin <jl@glen--canyon.com> - 2026-02-10 13:44 -0800
          energy and mass (was: usenet weirdness) ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-10 21:58 +0000
            Re: energy and mass (was: usenet weirdness) john larkin <jl@glen--canyon.com> - 2026-02-10 15:49 -0800
              Re: energy and mass (was: usenet weirdness) Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-02-11 01:19 +0000
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-11 16:32 +0100
              Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-11 15:23 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-11 07:44 -0800
                Re: energy and mass liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-02-11 18:47 +0000
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-11 23:09 +0100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-13 09:50 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-13 07:23 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 03:51 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-13 09:52 -0800
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-13 18:06 +0000
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-13 10:17 -0800
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-13 10:56 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-13 23:40 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-13 23:40 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 06:52 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-13 23:40 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-13 21:03 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 22:42 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-14 08:06 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-15 05:07 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-14 11:02 +0100
                Re: energy and mass "Paul B. Andersen" <relativity@paulba.no> - 2026-02-14 11:52 +0100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-14 11:57 +0100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-15 09:54 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-15 08:23 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-15 13:19 -0800
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-17 10:29 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-15 22:30 +0100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-18 16:22 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-18 22:21 +0100
                Re: energy and mass Jeremiah Jones <jj@j.j> - 2026-02-19 00:25 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-19 22:03 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-19 08:03 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 05:10 +1100
                Re: energy and mass Jeremiah Jones <jj@j.j> - 2026-02-19 21:04 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 18:04 +1100
                Re: energy and mass Jeremiah Jones <jj@j.j> - 2026-02-20 01:04 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 23:00 +1100
                Re: energy and mass Jeremiah Jones <jj@j.j> - 2026-02-20 22:06 -0800
                Re: energy and mass liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-02-21 09:31 +0000
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 22:48 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-19 12:26 +0100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-20 08:23 +0100
                Re: energy and mass Jeremiah Jones <jj@j.j> - 2026-02-20 01:16 -0800
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-22 10:38 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-14 04:17 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-14 04:29 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-14 04:35 -0800
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-14 08:10 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-15 05:39 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-17 09:53 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-17 12:49 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-17 09:29 -0800
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-17 18:47 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-17 10:37 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-18 15:35 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-18 10:37 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-18 10:57 -0800
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-18 20:56 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-18 12:32 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-18 11:06 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-18 11:13 -0800
                Re: energy and mass Python <python@cccp.invalid> - 2026-02-18 20:43 +0000
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-18 12:49 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-18 12:54 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-18 12:57 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-19 21:06 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-19 08:08 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-19 08:22 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 05:19 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-19 10:25 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 18:19 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-20 10:56 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 14:52 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-21 11:19 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 22:54 +1100
                Re: energy and mass "Don" <g@crcomp.net> - 2026-02-20 14:16 +0000
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-20 11:56 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-19 21:02 +1100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-19 20:52 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-19 11:56 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-19 23:39 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-19 14:13 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 02:47 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-19 21:41 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 18:26 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-20 11:35 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 23:09 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-20 13:30 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 03:20 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-20 11:35 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 03:43 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-20 11:37 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 15:09 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-20 21:47 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 15:29 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-21 11:19 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 23:12 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-21 14:58 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-21 05:59 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-22 17:04 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-22 14:19 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-23 02:25 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-22 11:01 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-22 23:40 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-19 08:54 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 18:32 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-20 08:46 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 15:39 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-20 21:31 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 23:23 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-21 05:06 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-22 15:27 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-21 23:18 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-22 20:20 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-22 03:11 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-22 03:24 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-23 02:42 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-22 10:30 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-22 11:15 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-23 17:23 +1100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-23 17:01 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-22 22:38 -0800
                Re: energy and mass Jeroen Belleman <jeroen@nospam.please> - 2026-02-19 14:36 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-19 07:56 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 03:00 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-19 07:49 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 05:30 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-19 07:46 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 05:40 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-19 21:41 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-19 15:52 -0800
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-20 15:22 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-19 11:27 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-19 21:41 +0100
                Re: energy and mass The Starmaker <starmaker@ix.netcom.com> - 2026-02-19 17:48 -0800
                Re: energy and mass The Starmaker <starmaker@ix.netcom.com> - 2026-02-20 01:35 -0800
                Re: energy and mass Arie de Muijnck <noreply@ademu.nl> - 2026-02-20 08:19 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-20 11:35 +0100
                Re: energy and mass Jeroen Belleman <jeroen@nospam.please> - 2026-02-19 22:11 +0100
                Re: energy and mass Joe Gwinn <joegwinn@comcast.net> - 2026-02-19 16:52 -0500
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-19 23:57 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-19 15:49 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-19 20:45 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-19 07:44 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 06:19 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-19 21:41 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-19 15:48 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 18:45 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-20 08:47 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 05:31 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-20 10:52 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-20 11:13 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 16:11 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-20 21:41 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-20 21:52 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 23:56 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-21 05:20 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-21 05:34 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-22 15:47 +1100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-22 15:37 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-22 20:34 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-23 17:27 +1100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 23:35 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-21 05:08 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-21 12:46 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-22 15:52 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-22 20:34 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-22 11:46 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-23 17:30 +1100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 15:56 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-20 22:03 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-20 22:12 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-22 00:08 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-21 05:40 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-22 15:58 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-21 23:25 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-22 11:25 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-23 02:55 +1100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-22 00:01 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-21 12:46 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-22 16:06 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-22 11:25 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-23 03:20 +1100
                Re: energy and mass nospam@de-ster.demon.invalid (J. J. Lodder) - 2026-02-22 22:38 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-22 14:10 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-23 17:46 +1100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-23 17:40 +1100
                Re: energy and mass Jeroen Belleman <jeroen@nospam.please> - 2026-02-20 20:09 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-20 11:21 -0800
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-21 16:16 +0100
                Cardinalities of sets (was: energy and mass) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-21 16:16 +0100
                Re: Cardinalities of sets Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-21 08:14 -0800
                Re: Cardinalities of sets Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-21 08:30 -0800
                Re: Cardinalities of sets Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-21 08:51 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-20 21:47 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-20 18:48 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-21 11:19 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-21 04:52 -0800
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-20 08:29 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-17 23:28 +1100
                Re: energy and mass liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-02-14 10:19 +0000
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-18 02:51 +0000
                Re: energy and mass Jeroen Belleman <jeroen@nospam.please> - 2026-02-18 09:53 +0100
                Re: energy and mass liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-02-20 15:12 +0000
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-20 09:05 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 05:34 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-20 19:27 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-21 16:55 +1100
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-11 19:17 +0000
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-11 23:09 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-11 14:11 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-12 11:12 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-12 08:43 -0800
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-12 09:41 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-13 11:27 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-13 10:14 -0800
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-11 14:39 -0800
                Re: energy and mass Martin Brown <'''newspam'''@nonad.co.uk> - 2026-02-12 09:39 +0000
                Re: energy and mass Jan Panteltje <alien@comet.invalid> - 2026-02-12 13:42 +0000
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-12 16:20 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 04:10 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-13 23:40 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-13 15:15 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-18 21:26 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-12 07:38 -0800
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-12 08:21 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 04:26 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-13 10:00 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 15:27 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-13 23:40 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-12 19:39 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-12 11:11 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-12 22:29 +0100
                Re: energy and mass Joe Gwinn <joegwinn@comcast.net> - 2026-02-14 18:59 -0500
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 04:19 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-13 10:03 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-13 11:59 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 04:41 +1100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-13 20:57 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 15:22 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-13 23:40 +0100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-14 11:17 +0100
                Re: energy and mass Python <python@cccp.invalid> - 2026-02-14 10:20 +0000
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 23:11 +1100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-14 14:21 +0100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-15 10:07 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-15 23:44 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-15 07:34 -0800
                Re: energy and mass "Don" <g@crcomp.net> - 2026-02-15 18:41 +0000
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-15 13:18 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-15 21:48 +0100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-17 10:16 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-17 23:41 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-02-18 16:39 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-19 03:38 +1100
                Re: energy and mass athel.cb@gmail.com <user12588@newsgrouper.org.invalid> - 2026-02-17 16:45 +0000
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-17 09:04 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-17 22:31 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-17 14:56 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-18 10:37 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-18 07:35 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-19 03:49 +1100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-18 09:00 -0800
                Re: energy and mass Gerhard Hoffmann <dk4xp@arcor.de> - 2026-02-18 18:35 +0100
                Re: energy and mass Joe Gwinn <joegwinn@comcast.net> - 2026-02-18 12:58 -0500
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-18 11:10 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-19 21:09 +1100
                Re: energy and mass liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-02-19 14:00 +0000
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-20 03:11 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-12 11:12 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 04:01 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-13 23:40 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-13 15:24 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 15:39 +1100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-11 17:21 +0100
              Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-12 14:55 +0100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-12 14:58 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-12 07:43 -0800
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-12 16:23 +0000
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-12 08:44 -0800
                Re: energy and mass Joe Gwinn <joegwinn@comcast.net> - 2026-02-12 12:12 -0500
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-12 17:15 +0000
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-13 13:45 +0000
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 05:12 +1100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-13 20:26 +0100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-12 22:08 +0100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-12 22:57 +0100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-13 00:33 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-12 19:39 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-12 11:04 -0800
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-12 19:22 +0000
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-12 20:16 +0000
                Re: energy and mass DJ Delorie <dj@delorie.com> - 2026-02-12 15:50 -0500
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-12 21:29 +0000
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-13 01:12 +0100
                Re: energy and mass DJ Delorie <dj@delorie.com> - 2026-02-12 20:59 -0500
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-13 03:15 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-13 11:27 +0100
                Re: energy and mass DJ Delorie <dj@delorie.com> - 2026-02-13 10:09 -0500
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-13 17:39 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-13 23:40 +0100
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-13 10:29 +0000
                Re: energy and mass DJ Delorie <dj@delorie.com> - 2026-02-13 10:21 -0500
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-13 17:34 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-12 23:12 +0100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-12 23:27 +0100
                Re: energy and mass The Starmaker <starmaker@ix.netcom.com> - 2026-02-12 11:28 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-12 22:29 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 05:22 +1100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-13 19:58 +0100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-13 09:50 -0800
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-12 22:03 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-12 23:12 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 05:34 +1100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-13 20:35 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 16:05 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-14 22:57 +0100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-14 21:59 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-15 17:50 +1100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-15 12:47 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-15 23:51 +1100
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-15 21:48 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-15 08:13 -0800
                Re: energy and mass nospam@de-ster.demon.nl (J. J. Lodder) - 2026-02-15 21:48 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-15 13:11 -0800
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 05:00 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-02-13 10:19 -0800
              Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 03:17 +1100
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-13 16:20 +0000
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-14 07:20 +1100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-14 03:31 +0100
                Re: energy and mass Jeroen Belleman <jeroen@nospam.please> - 2026-02-13 21:50 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-13 15:03 -0800
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-13 23:35 +0000
                Re: energy and mass Jeroen Belleman <jeroen@nospam.please> - 2026-02-14 10:47 +0100
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-14 15:21 +0100
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-14 07:58 -0800
                Re: energy and mass john larkin <jl@glen--canyon.com> - 2026-02-14 07:54 -0800
                Re: energy and mass Jeroen Belleman <jeroen@nospam.please> - 2026-02-14 18:01 +0100
                Re: energy and mass Gerhard Hoffmann <dk4xp@arcor.de> - 2026-02-14 20:52 +0100
                Re: energy and mass ram@zedat.fu-berlin.de (Stefan Ram) - 2026-02-15 17:20 +0000
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-02-16 13:08 +1100
                Re: energy and mass x <x@x.net> - 2026-02-14 15:38 -0800
                Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-02-14 03:36 +0100
        Re: usenet weirdness Martin Brown <'''newspam'''@nonad.co.uk> - 2026-02-10 22:06 +0000

csiph-web