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From: Jeroen Belleman <jeroen@nospam.please>
Newsgroups: sci.electronics.design
Subject: Re: Shielding spacecraft against cosmic radiation
Date: Fri, 15 Mar 2024 13:11:29 +0100
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On 3/15/24 10:35, John Larkin wrote:
> On Fri, 15 Mar 2024 07:28:39 GMT, Jan Panteltje <alien@comet.invalid>
> wrote:
> 
>> 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
>> :-)
> 
> Read up on the ways our cells operate and reproduce. It's astounding.
> 
> Darwin was very smart, but he had no idea how cells work. I think that
> if he had, he'd have been skeptical of random evolution and selection
> as our origin.
> 

And we are skeptical of your intelligent design stance. For that
matter, there are quite a few blunders in living beings that an
intelligent designer wouldn't have made.

Jeroen Belleman