Re: energy and mass

From	Thomas Heger <ttt_heg@web.de>
Newsgroups	sci.physics.relativity, sci.electronics.design
Subject	Re: energy and mass
Date	2026-03-26 14:33 +0100
Message-ID	<n2kqd4Fbsl2U4@mid.individual.net> (permalink)
References	(11 earlier) <2maqrkdah2i7c7phmlikom206f0162salb@4ax.com> <n272l9Ft5jbU2@mid.individual.net> <sst2sk90liq2pmb0723v3dtlavt2b3nrn2@4ax.com> <n2hj3cFi66uU6@mid.individual.net> <10q0dj5$1r9os$2@dont-email.me>

Cross-posted to 2 groups.

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Am Mittwoch000025, 25.03.2026 um 11:31 schrieb Bill Sloman:
...
>>> Nobody can see all the way down the abstraction stack, not even
>>> physicists. They don't know where the universe came from or how it
>>> actually works.
>>
>> Well, I actually can (at least I've tried).
>>
>> So, have a look at my 'book':
>>
>> https://docs.google.com/presentation/ 
>> d/1Ur3_giuk2l439fxUa8QHX4wTDxBEaM6lOlgVUa0cFU4/edit?usp=sharing
> 
> Don't bother.
> 
>>> Both engineers and physicists work with whatever they can get.
>>
>> Yes, the borders are thin between both realms.
>>
>> But physics is actually a natural science and engineers are mainly 
>> concerned with what they have built themselves.
>>
>>> The thing I like about desiging electronics is the many things it
>>> involves, and the fact that we can be done in months and move on to
>>> something else that's interesting.
>>
>> Only a small part of engineering is dealing with electronics.
>>
>> Engineers exist in several 'flavors', which range from building 
>> bridges to chemistry.
>> ...
> 
> And you don't know much about any of them.
> 

Sure, I have never build a bridge.

But I know a few things about electronics and chemistry.

My specific 'flavour' is called 'economics engineering'.

It is kind of mixture of economics and building machines.

That is quite difficult and not a very common topic in other countries.

(It's among the 'crown jewels' of German education.)

TH

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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 Flavio Schuhart <ifuaofvs@thl.de> - 2026-03-29 12:59 +0000
                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 Donovan Rocca <onon@nanna.it> - 2026-03-19 20:31 +0000
        Re: energy and mass Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-03-20 01:40 +0100

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