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From: kludge@panix.com (Scott Dorsey)
Newsgroups: rec.arts.sf.written
Subject: Re: Five SF Books Set in the Future... of 2020
Date: 22 Sep 2024 23:19:21 -0000
Organization: Former users of Netcom shell (1989-2000)
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James Nicoll <jdnicoll@panix.com> wrote:
>Bobbie Sellers  <blissInSanFrancisco@mouse-potato.com> wrote:
>>On 9/22/24 15:09, Scott Dorsey wrote:
>>> Bobbie Sellers  <blissInSanFrancisco@mouse-potato.com> wrote:
>>>> 	But I happen to be curently reading "Aftermath" by
>>>> Charles Sheffield which is set in 2026 published in 1998.
>>>>   In this novel the world is suffering a double crisis.  Alpha Centuri
>>>> has gone supenova and the radiation hit the Suuthern Hemisphere
>>>> and set offgsome very unpleansanbt weather but the wave of hard
>>>> radiation causes a EMP and wipes out all computers not in
>>>> Faraday cages.
>>> 
>>> This is written by someone who is unfamiliar with the inverse square law?
>>
>>	I dunno what Sheffield is familiar with aside from excellent story
>>telling skills. But the microchip ending event is the very hard 
>>radiation delayed by the expanding shell of the supernova.

Right, and as the shell gets larger and larger, it becomes less and less
dense.  The radiation still has lots of energy, but there is less of it.

We get very high energy cosmic rays here that are very high energy, 
enough to easily penetrate through the Van Allen belts and the atmosphere
and my roof.  They leave annoying streaks on the photographic film stored
in my freezer, and they keep on going.  But there aren't a lot of them,
so other than some fogging they aren't a serious threat.

>>	Within the story the effects are credible. In real life asfawk
>>Alpha Centuri is not the correct sort of star to become a supernova. In
>>the story that point is raised and then dropped because in the world
>>of the story it happened regardless of supernova theory.
>
>I believe in the second book, Alpha C's nova turns out to have
>been assisted, and also that the explosion was assymetric. 

A CME directed toward the earth might make for something more measurable
here, although it would have to be pretty narrow.
--scott

-- 
"C'est un Nagra. C'est suisse, et tres, tres precis."