Path: ...!weretis.net!feeder8.news.weretis.net!reader5.news.weretis.net!news.solani.org!.POSTED!not-for-mail
From: Jan Panteltje <alien@comet.invalid>
Newsgroups: sci.electronics.design
Subject: Re: Shielding spacecraft against cosmic radiation
Date: Fri, 15 Mar 2024 07:28:39 GMT
Message-ID: <ut0tb7$1cfla$1@solani.org>
References: <usosc0$18otd$1@solani.org> <34h1vihp32geb2olkcscfksbr8k0bdgdmu@4ax.com> <usrjfr$19rlq$1@solani.org> <ae13viptr1sskaqq1h2ru1j9i85sdecfrd@4ax.com> <usu4in$1bf46$1@solani.org> <in46vipa7a3eb6q7au6alobve5vfmv5jso@4ax.com> <usv9kg$1bn8q$1@solani.org> <s3d6vi95gfrbs6omoula55soaktalpggru@4ax.com>
MIME-Version: 1.0
Content-Type: text/plain; ISO-8859-15
Content-Transfer-Encoding: 8bit
Injection-Date: Fri, 15 Mar 2024 07:28:39 -0000 (UTC)
Injection-Info: solani.org;
	logging-data="1457834"; mail-complaints-to="abuse@news.solani.org"
User-Agent: NewsFleX-1.5.7.5 (Linux-5.15.32-v7l+)
Cancel-Lock: sha1:NHI5OoS3ex74tgKiFBaju1nv7/Q=
X-User-ID: eJwFwQkBwDAIA0BLpYFA5YzPv4TdGSgsVxrV1nbtC8fk7u2pab854u9lloqrvzjR2MbrbHYpSwgBsuIU5geBUxZi
X-Newsreader-location: NewsFleX-1.5.7.5 (c) 'LIGHTSPEED' off line news reader for the Linux platform
 NewsFleX homepage: http://www.panteltje.nl/panteltje/newsflex/ and ftp download ftp://sunsite.unc.edu/pub/linux/system/news/readers/ 
Bytes: 5253
Lines: 91

On a sunny day (Thu, 14 Mar 2024 10:38:47 -0700) it happened john larkin
<jl@650pot.com> wrote in <s3d6vi95gfrbs6omoula55soaktalpggru@4ax.com>:

>On Thu, 14 Mar 2024 16:46:07 GMT, Jan Panteltje <alien@comet.invalid>
>wrote:
>
>>On a sunny day (Thu, 14 Mar 2024 08:13:31 -0700) it happened John Larkin
>><jl@997PotHill.com> wrote in <in46vipa7a3eb6q7au6alobve5vfmv5jso@4ax.com>:
>>
>>>On Thu, 14 Mar 2024 06:13:43 GMT, Jan Panteltje <alien@comet.invalid>
>>>wrote:
>>>
>>>>On a sunny day (Wed, 13 Mar 2024 03:54:24 -0700) it happened John Larkin
>>>><jl@997PotHill.com> wrote in <ae13viptr1sskaqq1h2ru1j9i85sdecfrd@4ax.com>:
>>>>
>>>>>On Wed, 13 Mar 2024 07:09:47 GMT, Jan Panteltje <alien@comet.invalid>
>>>>>wrote:
>>>>>
>>>>>>On a sunny day (Tue, 12 Mar 2024 14:18:18 -0700) it happened john larkin
>>>>>><jl@650pot.com> wrote in <34h1vihp32geb2olkcscfksbr8k0bdgdmu@4ax.com>:
>>>>>>
>>>>>>>On Tue, 12 Mar 2024 06:22:55 GMT, Jan Panteltje <alien@comet.invalid>
>>>>>>>wrote:
>>>>>>>
>>>>>>>>Shields up: New ideas might make active shielding viable
>>>>>>>>Active shielding was first proposed in the '60s. We’re finally close to making it work.
>>>>>>>> https://arstechnica.com/science/2024/03/shields-up-new-ideas-might-make-active-shielding-viable/
>>>>>>>>
>>>>>>>>bit of static oelectricity, 1 MV ?
>>>>>>>
>>>>>>>That's all absurd, cramming a crew into a tiny dark cylinder, deep
>>>>>>>inside tons of magnets, to reduce their radiation exposure a little.
>>>>>>
>>>>>>Yes that may be more dangerus, tha tI why I like the elctrostatic solution.
>>>>>>
>>>>>>
>>>>>>>Space is not people-friendly. Earth is.
>>>>>>>
>>>>>>>Traveling to or living on Mars woud be lethal. Living on the moon
>>>>>>>would be bad too.
>>>>>>
>>>>>>Maybe we could convert some comet, live inside it,
>>>>>>use its material for power water and  shelter
>>>>>>and put an engine on it and start interstellar travel:
>>>>>> https://en.wikipedia.org/wiki/%CA%BBOumuamua
>>>>>
>>>>>You go first.
>>>>
>>>>Oh I would not mind flying the comet thing, would want to have a say in the design and food chosen though.
>>>>but it will take generations to reach any target destination.
>>>>So you have to bring whole families ,
>>>>or as things go now, just some skin and have a computah hatch you
>>>>and teach you when growing up near the destination.
>>>>Makes you wonder if the first life on earth was brought here in a similar way 
>>>>(circular reasoning).
>>>
>>>Earth is too good to be an accident, and our life form is too complex
>>>to have evolved from inorganics. Other civiizations in the universe
>>>have probably advanced for billions of years. So it's likely that
>>>Earth and DNA-based life were designed, maybe as a high school science
>>>project. I give it a B-.
>>
>>Well I won't attack your religious beliefs
>
>I expressed no religious beliefs, and it's good that you wouldn't
>attack any.
>
>RNA World is a religious belief. Concensus and faith without evidence.
>
>
>>Just watched some news story where a sort of computer robot was teaching kids...
>>Again, an other science program today on TV about planets: all sort of basic chemistry was found
>>on some moons and asteroids.
>
>Sure. Chemicals are not life, as a junk box full of parts is not a
>working electronic instrument.
>
>
>>They did a testing in the lab and made RNA from just basic chemicals added some heat cycling and dry soak cycle
>>like you will find on planets (sun, tides):
>> https://phys.org/news/2022-03-insight-life.html
>>
>>we are just a chemical reaction really.
>>
>
>We are an astoundingly complex structure that uses chemicals and
>quantum mechanics. At least I am.

from elementary particles to atoms to molecules to self-replicating RNA (check)
from RNA to DNA and ever more complex forms like us (check)
Readup on Darwin
:-)