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From: Jan Panteltje <alien@comet.invalid>
Newsgroups: sci.electronics.design
Subject: Re: Shielding spacecraft against cosmic radiation
Date: Thu, 14 Mar 2024 16:46:07 GMT
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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
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.
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.