Groups > sci.physics.relativity > #670443

Re: energy and mass

From	Thomas Heger <ttt_heg@web.de>
Newsgroups	sci.physics.relativity, sci.electronics.design
Subject	Re: energy and mass
Date	2026-03-25 08:59 +0100
Message-ID	<n2hieiFi66uU4@mid.individual.net> (permalink)
References	(22 earlier) <10pjqkv$1mlp8$3@dont-email.me> <n29qnmFbrurU2@mid.individual.net> <10pojcn$380fj$1@dont-email.me> <n2cavsFnf0rU4@mid.individual.net> <10pr8a3$1db2$5@dont-email.me>

Cross-posted to 2 groups.

Show all headers | View raw

Am Montag000023, 23.03.2026 um 12:31 schrieb Bill Sloman:
> On 23/03/2026 7:21 pm, Thomas Heger wrote:
>> Am Sonntag000022, 22.03.2026 um 12:21 schrieb Bill Sloman:
>>
>>>>>>>>>> the huge basement was not a compact mess of stone and steel, 
>>>>>>>>>> as we would expect, but was almost entirely undamaged.
>>>>>>>>>
>>>>>>>>> As you might expect if you neglected to think about what had 
>>>>>>>>> actually happened.
>>>>>>>>
>>>>>>>> No, not at all.
>>>>>>>>
>>>>>>>> I personally thought, that an exotic weapon was used, which 
>>>>>>>> could turn large structures of steel and concrete into fine dust.
>>>>>>>>
>>>>>>>> But I would have doubts about al-quida having such a device.
>>>>>>>
>>>>>>> Or anybody else.
>>>>>>>
>>>>>>>>>> That should shock you, since that would mean, that 80 to 90% 
>>>>>>>>>> of the original building materials vanished without a trace.
>>>>>>>>>
>>>>>>>>> Dust clouds are ephemeral. They blow away. They don't have to 
>>>>>>>>> blow far away to avoid showing up in the basement. 
>>>>>>>>
>>>>>>>> Dust blows away, that's true.
>>>>>>>>
>>>>>>>> But how would you transform a 400m skyscraper into fine dust??
>> ...
>>>>>>>> It also happened in mid-air, because the fine dust was blown 
>>>>>>>> away, before it had reached the ground.
>>>>>>>
>>>>>>> 400 meters is quite a long way up in the air, and a fierce fire 
>>>>>>> generates a lot of air-circulation. 
>>>>>>
>>>>>> Well, yes 400m is quite a height. But free-falling rubble needs 
>>>>>> only a few seconds to pass that distance.
>>>
>>> 9.032 seconds. It gets up to a speed of 88.57m/sec.
>>
>> A little wind drag and we get 10 seconds for a piece of rubble to fall 
>> down from the roof.
> 
> The bulk of the building was below the roof.
Yes, that is actually a true statement and I have no intentions to 
reject you claim.

> 
>> The speed would also be very high and in the range of 300 km/h.
> 
> Only if it fell all the way from the roof, and if it didn't slowed down 
> the air currents feeding oxygen into the fires and replacing the hot air 
> rising out of the fire.

Sure, but if we take, say, only the highest 10% of the building and 
ignore the rest, then we would encounter at least those 10% smashing 
upon the ground level with more then 300 km/h.

This velocity would multiply with an enormous mass of up to 20000 kg per 
piece to a gigantic momentum.

And because momentum is a conserved quantity, we need tremendous amounts 
of material to stop such a falling piece.

This material needs to shoot away from a large crater with very high speed.

But that didn't happen, because the street level of WTC-Plaza wasn't 
demaged at all (well a few holes were actually punched into the street 
level, but not remotely as much and as large as expected).

So, material objects with a mass larger than 20 to of steel and concrete 
'dustified' in mid air and were blown away.

THIS was - at least- rather strange.
...


TH

Back to sci.physics.relativity | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-18 09:11 +0100
  Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-18 21:28 +1100
    Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-19 12:10 +0100
      Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-20 01:35 +1100
        Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-19 07:44 -0700
          Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-19 07:52 -0700
            Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-20 09:42 -0700
              Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-20 09:58 -0700
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-20 10:28 -0700
        Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-20 11:00 +0100
          Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-21 02:54 +1100
            Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-22 10:31 +0100
              Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-22 22:21 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-23 09:21 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-23 22:31 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-23 08:11 -0700
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-25 09:02 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-25 21:40 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-25 07:26 -0700
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-27 08:54 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-28 02:51 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-29 09:56 +0200
                Re: energy and mass Daren Remond <ndno@dmrndd.us> - 2026-03-29 13:04 +0000
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-30 08:33 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-30 01:32 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-29 07:39 -0700
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-30 08:48 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-30 18:15 +1100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-30 10:17 +0200
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-31 09:13 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-31 22:46 +1100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-03-31 13:57 +0200
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-25 08:59 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-25 22:01 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-26 15:00 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-27 02:47 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-27 09:13 +0100
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-28 03:17 +1100
                Re: energy and mass Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-27 10:39 -0700
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-29 10:19 +0200
                Re: energy and mass Cloro Sandiford <iofnd@dosc.us> - 2026-03-29 13:01 +0000
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-30 08:31 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-31 02:45 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-03-31 09:39 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-03-31 23:10 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-04-01 09:47 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-04-02 02:34 +1100
                Re: energy and mass Maciej Woźniak <mlwozniak@wp.pl> - 2026-04-01 18:23 +0200
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-04-03 10:12 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-04-03 23:42 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-04-05 09:57 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-04-06 02:53 +1000
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-04-06 13:09 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-04-07 04:11 +1000
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-04-08 09:13 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-04-08 22:56 +1000
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-04-03 10:31 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-04-04 03:16 +1100
                Re: energy and mass The Starmaker <starmaker@ix.netcom.com> - 2026-04-03 09:38 -0700
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-04-04 04:15 +1100
                Re: energy and mass The Starmaker <starmaker@ix.netcom.com> - 2026-04-03 23:18 -0700
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-04-04 21:37 +1100
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-04-05 10:14 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-04-05 20:58 +1000
                Re: energy and mass Thomas Heger <ttt_heg@web.de> - 2026-04-06 12:51 +0200
                Re: energy and mass Bill Sloman <bill.sloman@ieee.org> - 2026-04-07 04:27 +1000
      Re: energy and mass The Starmaker <starmaker@ix.netcom.com> - 2026-03-19 11:17 -0700

csiph-web