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----- Original Message -----
From: "Jesus-loves-you" <John15.13@Heaven>
Newsgroups: dk.videnskab
Sent: Saturday, August 07, 2004 12:51 PM
Subject: Re: New Drake-version (SETI)
2991 news:wu2Rc.29684$Vf.1804767@news000.worldonline.dk
http://groups.google.dk/group/dk.videnskab/msg/5b93149eac297270
______________________ the message _________________________________________________
"Per Abrahamsen" skrev
Sent: Friday, July 23, 2004 CET 4:23 PM
news:rjhdryhkee.fsf@sheridan.dina.kvl.dk
> Jonas Møller Larsen <nospam@nospam.invalid> writes:
>
> > Det er jeg ikke helt enig i. Hvis modtageren ellers giver sig til at
> > prøve at opdele bitstrømmen i "bytes" af fast længde, tror jeg nu nok,
> > at n=8 vil skille sig ud, da de første netop n bytes da bliver meget
> > pæne. Desuden er 8 jo en nydelig, heltallig potens af 2.
>
> Sikkert, men det er stadig lettere for dig end for et, eftersom bytes
> af 8 bit er konventionen, og vores anonyme ven allerede har omtalt det
> som bytes.
Som tidligere skrevet:
Sent: Monday, July 19, 2004 CET 2:41 PM
2922 news:zkPKc.26110$Vf.1379517@news000.worldonline.dk
>
> Tak for din *konstruktive* kritik, Per ... :-)
Den er jeg meget glad for og har fortsat hårdt brug for den ... :-)
Tillad mig her at anskueliggøre, hvad Jonas taler om:
(anvend venligst *minimum* 65 tegn pr. linje)
1-bits-systemet:
0________0______00________0_____0_0______00_____000______________
2-bits-systemet:
____0___0___________0___0_______________0___0____0__00___________
0_______0____0__00___0__00__________0____0__00______00____0_____0
3-bits-systemet:
_____0__0_0__0__0____________0____00__0___0_00__0__000___________
_____0_____0____0__________0_0_____0___________00____000_0____00_
0__0__________0_0_______0__0__0__0_0__________0_0_0___0___0______
4-bits-systemet:
________________________0_0___________0_0_____0___0___0________0_
______0_0_0_0_______0_0___0______00000_000_0___0_0_0_0_0_0______0
__0_0_____0_0_______0_0___0_______0_0___0____________0_0_0_______
0___0___0___0_____0___0___0__0__0___0___0__0_____0_0_____0_______
5-bits-systemet:
_0____0__0_______0_00_____0_0_____0_____0_00_0______0__0____0____
_________0_______0_______0_0___00______00_0__0_____0___0_________
___0__0_0_____0_0____0_____00___0_0__0______0________________0___
___0_0__0_______0____0_0_____0__00_____0_0__0______________0____0
0_________0_______0__0_______0000_____0_______0____0_0________0__
6-bits-systemet:
__0___0_______0__0____0__00______0__0_____________________0_000__
__0__0_______00__0_____0__000__00__0______________00__00__0____0_
_0___________0__00_________________00_____0___0______0_00________
____00__0________0_0_00_0_0_______0___0_______0__0___________00__
________0_______________0__0___0______0_____0______0___________0_
0______00___0__0_______000_0_0___00__00____00___________00__00___
7-bits-systemet:
____000_____0_0_____0_0_0_______0___00_0___0_00_0____0___0____0__
___0_______00______00__0__0____00____0_0_______0__________0_0____
____0______00___0__00_0_0_____000______________0____0_0__________
__0__________________0_______00_____0______0____0_00_0_____0_0___
_00_______0____0__0_0__0____0__0__________0_0_____0_0_____0_0____
_______0______00___0__00___0_0______________________0_0_00_00___0
0_____00_______0_______0____00__________________0____0__0_0__0_0_
8-bits-systemet:
_______________________________0__0______________________________
________________000000_000000_____0___0__00__000__0000___0___0___
__________________________000____________0___0____0_0____________
______________0______0__00__0____________________________________
____________00_____00__0_0_0__________0___0___00___0_0___0___0___
___0000___00_0___00_0___________0________________________________
_00__00___00_0___00_0____________0______0___0__0_0___0_000_00__00
0_0_0_0__0_0_0__0_0_0____________0___00__00_000__0000__0___0___0_
9-bits-systemet:
_00______0_00_0__0____0_______0_0_______00____0_00____0______0___
_0_0_____0_0___0_0__00_0_________0____________00__0______0_____0_
____0______0____0_____000___0______0_0__0__0_0_____________0_____
___000_____0_____0____0_00______________00_0________0_0____00____
_____0____________0______0___0____0_0_____0_0__0____00_________0_
_____0_________0___0____00__00_______0_______0_____0_________0___
______________0000_____________________0_0____00______________0__
_________0______0_00_0____________0__0_0__0__0__________0______0_
00______0000____0_0___0________0_____00_0____00__0_0____00____0__
10-bits-systemet:
0___0___00___________00____0_____0___0______00___________________
____0___0___00_0___0__0__0_0____0___0___0______________00__00____
_0________0__0____0___________0______0____0__0_______0_0_________
_00_______00__0_0__00________0___0__0___00___________0____000_0__
__________0___00_________00_________0___0_0_______0___0_____0____
___0______0__00__0__00____0___0__0___0___0_______00______0___000_
________________0___00___________0_0___0_______0___0_________0___
___00__00_____0_00____0___________00__00__0___00_______0___0_____
____0___0_______0_____0_________0____0___00_0___00_______0______0
0____0___0_____00__0___0_______0____0___0__00_______0___0___0____
11-bits-systemet:
__0_________0______00_____00________0_____0_00____00____0___0____
0__0__________00_0__0________00_____000_0____0__0____0_0___0_____
___0_____0____0___0_0___________0000_____0_0____0_0____00__00_0__
_________0_0_000___________0_______0_00_____0_0___00_____0___00__
_0__0_0__00_0_0___0___________0__________0_______0____0_______0_0
_0__0__0_0__0_____00___0_________00____________________________0_
__0_0__0______0____0_____0____0_____000_______________0_____00_0_
_____________0___0_______0____0__00___0________0_____0_0__0_____0
________0___00______0__0____00___0________________0_0_0__________
___0____0____000____0___0______00____0_00______________0_____0__0
0_______00_______00_____0_______0_0_____0_00___________0_________
12-bits-systemet:
________0___0___0_____________0_________0_________________0___0__
__0___0_0__0_0_0_0_______0_0___0_0_0___________000__0_00____0__0_
0_____0_0________0________00____00__0_____0_0_________0___0_0____
__0_____000_____________0_____0_0_0_0_______0_0__00____0____0_00_
_____________0_0_________0_____0___0___________0_____________0_0_
___0___0___0000_0_0__0______0_0___0___0_______0___0_____00______0
_0_0___0___0_0____0__________000___0_0_0_____00___0__0___0___0___
_0_____0_____00_0________0_0_0___0_____0___0___0_0_____0_0___0_0_
________0_________0__0_0____0_____0___0_________________0___0___0
__0_0______000___0_0___0_______0___0_____0_________00_____00_____
____0_______0______0__0____________0__0_0_0________0______0______
0___0_0_____0____0_0__0_____0_0___0_______0___0___0_0___0_______0
Når man "ses" på de forskellige bits-systemer, da mener jeg, at *et* af
bits-systemerne udskiller sig klart fra resten i kraft af, at nogle
"fornuftige" tal fremkommer (1,2,3,4,5,6,7 ...)
> > Desuden finder jeg det naturligt at kategorisere atomer efter deres
> > protontal. De oplagte alternativer er neutrontal og nukleontal. Men
> > kulstof-14 (6 protoner og 8 neutroner) har nu engang langt mere til
> > fælles med kulstof-12 (samme protontal) end med ilt-16 (samme
> > neutrontal) eller kvælstof-14 (samme nukleontal).
>
> Man kunne for eksempel nummerere dem efter antal frie bindinger, som
> søjlerne i det periodiske system. Eller noget helt andet vi slet ikke
> har tænkt på, fordi vores naturvidenskabelige verdensbillede ikke har
> samme udviklingshistorie som deres.
Dersom vi forsøger at definere atomerne efter deres antal af frie bindinger,
da vil vi hurtigt få alvorlige problemer. Fx. har O (ilt) og S (svovl) samme
antal, hvorfor denne definition er et dårligt valg.
> Men det er rigtig at *hvis* deres beskrivelse af naturlovene ligner
> vores nok til at vi overhovedet har noget at tale om, *så* vil de nok
> på et eller andet tidspunkt begynde at tænke på antal protoner i
> kernen.
Ja, vi må gå ud fra, at de har lært at tælle ... :-)
> Men det kræver (antageligvis) er meget større spring for ET, end for
> en person der er vandt til at nummerere atomer efter protoner, ...
Kemisk set er der logik i dette system, og de kemiske naturlove gør sig
gældende i så godt som næsten hele Universet.
> ... og inddele bits i potioner af 8.
Se ovenfor.
Som sagt:
Tak for din *konstruktive* kritik, Per ... :-)
Med venlig hilsen,
Mogens Kall, The servant of Michael
--
SETI: Win (vind) 2000 Danish Kr. (around 300 US $), jump ...
2987 news:pFZQc.29652$Vf.1800373@news000.worldonline.dk
(use perhaps http://www.google.dk/grphp )
File-number: 2991
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