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From: Cursitor Doom <cd@notformail.com>
Newsgroups: sci.electronics.design
Subject: Re: Exploding pagers
Date: Sat, 21 Sep 2024 00:04:39 +0100
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On Fri, 20 Sep 2024 17:16:28 -0400, Joe Gwinn <joegwinn@comcast.net>
wrote:

>On Fri, 20 Sep 2024 16:57:47 -0000 (UTC), Cursitor Doom
><cd999666@notformail.com> wrote:
>
>>On Fri, 20 Sep 2024 09:57:27 +0100, Liz Tuddenham wrote:
>>
>>> Cursitor Doom <cd999666@notformail.com> wrote:
>>> 
>>>> On Wed, 18 Sep 2024 06:37:13 GMT, Jan Panteltje wrote:
>>>> 
>>>> > On a sunny day (Tue, 17 Sep 2024 15:39:17 -0700) it happened john
>>>> > larkin <jl@650pot.com> wrote in
>>>> > <rv0kejddm69cioik17oeujstlfig16jn4o@4ax.com>:
>>>> > 
>>>> >>On Tue, 17 Sep 2024 13:18:26 -0500, Crash Gordon <uucp@crashelex.com>
>>>> >>wrote:
>>>> >>
>>>> >>>Pagers, even with a cheap LiPo battery that fails, do not explode.
>>>> >>>Somebody built hundreds, maybe thousands, of intentionally
>>>> >>>booby-trapped pagers and then managed to distribute them to a large
>>>> >>>group of targeted individuals.
>>>> >>>
>>>> >>>This absolutely screams "state actor" but all of the states that
>>>> >>>would be capable of pulling it off have disavowed any connection, as
>>>> >>>would be expected.
>>>> >>>
>>>> >>>Posting is on-topic for s.e.d because these things had to be
>>>> >>>*designed*.
>>>> >>>  Targets can be expected to cross security boundaries so these
>>>> >>>  pagers
>>>> >>>had to look like normal pagers under X-ray, and had to not "smell"
>>>> >>>like explosives.  Putting aside, for sake of discussion, the horror
>>>> >>>of the device itself and the evil necessary to conceive and deploy
>>>> >>>it, one has to on some level, admire the skill required to manage
>>>> >>>it.
>>>> >>
>>>> >>It's assumed that the Israelis booby-trapped the batch of pagers that
>>>> >>were bought by Hezbollah. Fiendishly clever.
>>>> >>
>>>> >>I'm surprised that anybody still makes or uses pagers.
>>>> > 
>>>> > They used batteries filled with an explosive that would trigger when
>>>> > temperature rised above some point They could heat your smartphone
>>>> > battery by hacking or even some sucking website or email.
>>>> > So be carefull what batteries you use, same for the equipment you
>>>> > make. Simple heat up test in safety chamber would be a good idea?
>>>> 
>>>> Is there such an explosive? High explosives - as it appears were used
>>>> here - generally need a significant *shock* to set them off. Heat alone
>>>> isn't normally enough and even if it were, the temp required would have
>>>> necessitated the rapid discarding of the pager before it got
>>>> sufficiently hot.
>>> 
>>> They aren't restricted to just a single type of explosive.  There are
>>> detonators that can be set off by a very small increase in temperature
>>> and a few microgrammes of those would set off a bigger charge of
>>> something more powerful.
>>
>>Well, maybe. But no one has yet *named* a practical explosive such as 
>>could be used in a pager which explodes when heated. I would like a 
>>specific named substance I can verify does that, because I simply cannot 
>>think of one and am consequently questioning whether one actually exists.
>
>PETN heated by a laser.
>
>.<https://www.sciencedirect.com/science/article/abs/pii/S0010218019304948>
>
>Laser pulse initiation of RDX-Al and PETN-Al composites explosion

But that's not what has been claimed. The MSM gave us to understand
that the explosive involved could be triggered by a the kind of
temperature increase we would expect from an overheating lithium
battery. No one has yet specifically named a practical explosive which
does this. You say PETN can be triggered by heating from a laser which
is not the same thing at all. I like questioning official narratives,
but am getting rather tired of this one. I'm not *that* interested to
pursue the matter ad infinitum.