Niouzes.org  

Précédent   Niouzes.org > Forum > Newsgroup fr.sci.* Forum > Newsgroup fr.sci.maths
S'inscrire FAQ Membres Calendrier Recherche Messages du jour Marquer les forums comme lus



Réponse

 

LinkBack Outils de la discussion Modes d'affichage
  #1 (permalink)  
Vieux 31/01/2008, 01h54
Ockham
 
Messages: n/a
Par défaut Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY


"xxein" <xxein***comcast.net> wrote in message
news:50c4d3b3-f2c5-4cdd-8095-1760a4851e85***i72g2000hsd.googlegroups.com...
On Jan 30, 5:30 am, Pentcho Valev <pva...***yahoo.com> wrote:
> http://hem.bredband.net/b153434/Works/Einstein.htm
> Divine Albert: "In a space which is free of gravitational fields we
> introduce a Galilean system of reference K (x, y, z, t), and also a
> system of co-ordinates K' (x', y', z', t') in uniform rotation
> relatively to K. Let the origins of both systems, as well as their
> axes of Z, permanently coincide. We shall show that for a space-time
> measurement in the system K' the above definition of the physical
> meaning of lengths and times cannot be maintained. For reasons of
> symmetry it is clear that a circle around the origin in the X, Y plane
> of K may at the same time be regarded as a circle in the X', Y' plane
> of K'. We suppose that the circumference and diameter of this circle
> have been measured with a unit measure infinitely small compared with
> the radius, and that we have the quotient of the two results. If this
> experiment were performed with a measuring-rod at rest relatively to
> the Galilean system K, the quotient would be [pi]. With a measuring-
> rod at rest relatively to K', the quotient would be greater than [pi].
> This is readily understood if we envisage the whole process of
> measuring from the "stationary" system K, and take into consideration
> that the measuring-rod applied to the periphery undergoes a Lorentzian
> contraction, while the one applied along the radius does not. Hence
> Euclidean geometry does not apply to K'."
>
> Why does Divine Albert believe that, "with a measuring-rod at rest
> relatively to K', the quotient would be greater than [pi]"? Obviously
> because "the measuring-rod applied to the periphery undergoes a
> Lorentzian contraction". Then why does the segment of the periphery,
> to which the measuring-rod is applied and which moves together with
> the measuring-rod, fail to undergo a Lorentzian contraction?
>
> In 1902, in "La Science et l'hypothese", Henri Poincare, in order to
> justify non-Euclidean geometries, presented a parabole. Bidimensional
> creatures live on a disc. The disc is heated under its center so that
> the temperature is high at the center and decreases towards the
> periphery. The creatures use rigid measuring rods in order to
> determine the geometry of their world. They know nothing about the
> heater and accordingly discover that the ratio of the circumference
> and the diameter is greater than [pi]. The creatures conclude that
> Euclidean geometry cannot be true on their disc.
>
> Pentcho Valev
> pva...***yahoo.com


xxein: We are K' to any other observer (gravity or not). For your
question (sans gravity) who would not be K'? How do WE get pi?

http://en.wikipedia.org/wiki/Computing_%CF%80








Réponse avec citation
Alt Today
Advertising
Google Adsense
 
This advertising will not be shown
in this way to registered members.
Register your free account today
and become a member on
Niouzes.org
Standard Sponsored Links

  #2 (permalink)  
Vieux 31/01/2008, 02h27
Jeckyl
 
Messages: n/a
Par défaut Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY

> On Jan 30, 5:30 am, Pentcho Valev <pva...***yahoo.com> wrote:
>> http://hem.bredband.net/b153434/Works/Einstein.htm
>> Divine Albert: "In a space which is free of gravitational fields we
>> introduce a Galilean system of reference K (x, y, z, t), and also a
>> system of co-ordinates K' (x', y', z', t') in uniform rotation
>> relatively to K. Let the origins of both systems, as well as their
>> axes of Z, permanently coincide. We shall show that for a space-time
>> measurement in the system K' the above definition of the physical
>> meaning of lengths and times cannot be maintained. For reasons of
>> symmetry it is clear that a circle around the origin in the X, Y plane
>> of K may at the same time be regarded as a circle in the X', Y' plane
>> of K'. We suppose that the circumference and diameter of this circle
>> have been measured with a unit measure infinitely small compared with
>> the radius, and that we have the quotient of the two results. If this
>> experiment were performed with a measuring-rod at rest relatively to
>> the Galilean system K, the quotient would be [pi]. With a measuring-
>> rod at rest relatively to K', the quotient would be greater than [pi].
>> This is readily understood if we envisage the whole process of
>> measuring from the "stationary" system K, and take into consideration
>> that the measuring-rod applied to the periphery undergoes a Lorentzian
>> contraction, while the one applied along the radius does not. Hence
>> Euclidean geometry does not apply to K'."
>>
>> Why does Divine Albert believe that, "with a measuring-rod at rest
>> relatively to K', the quotient would be greater than [pi]"? Obviously
>> because "the measuring-rod applied to the periphery undergoes a
>> Lorentzian contraction". Then why does the segment of the periphery,
>> to which the measuring-rod is applied and which moves together with
>> the measuring-rod, fail to undergo a Lorentzian contraction?


The rod when measuring the radius has its long edge aligned in the direction
of a radial line, and so the long edge is not in the diretio of motion (it
is a right angles to it) so you get no contraction in length of ruler (but
you do get one in the width).

When the rod is turned around to measure along the periphery, the long edge
of the rod aligned in the direction of motion and so it is contracted, but
this time the width is not.


Réponse avec citation
  #3 (permalink)  
Vieux 31/01/2008, 03h00
Maxime
 
Messages: n/a
Par défaut Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY

Est-il possible que les abérations que ces deux timbrés viennent d'écricre
puissent être traduites en un français concis ? ? ? SVP

"Jeckyl" <noone***nowhere.com> a écrit dans le message news:
13q2ch3l52qce11***corp.supernews.com...
> > On Jan 30, 5:30 am, Pentcho Valev <pva...***yahoo.com> wrote:
> >> http://hem.bredband.net/b153434/Works/Einstein.htm
> >> Divine Albert: "In a space which is free of gravitational fields we
> >> introduce a Galilean system of reference K (x, y, z, t), and also a
> >> system of co-ordinates K' (x', y', z', t') in uniform rotation
> >> relatively to K. Let the origins of both systems, as well as their
> >> axes of Z, permanently coincide. We shall show that for a space-time
> >> measurement in the system K' the above definition of the physical
> >> meaning of lengths and times cannot be maintained. For reasons of
> >> symmetry it is clear that a circle around the origin in the X, Y plane
> >> of K may at the same time be regarded as a circle in the X', Y' plane
> >> of K'. We suppose that the circumference and diameter of this circle
> >> have been measured with a unit measure infinitely small compared with
> >> the radius, and that we have the quotient of the two results. If this
> >> experiment were performed with a measuring-rod at rest relatively to
> >> the Galilean system K, the quotient would be [pi]. With a measuring-
> >> rod at rest relatively to K', the quotient would be greater than [pi].
> >> This is readily understood if we envisage the whole process of
> >> measuring from the "stationary" system K, and take into consideration
> >> that the measuring-rod applied to the periphery undergoes a Lorentzian
> >> contraction, while the one applied along the radius does not. Hence
> >> Euclidean geometry does not apply to K'."
> >>
> >> Why does Divine Albert believe that, "with a measuring-rod at rest
> >> relatively to K', the quotient would be greater than [pi]"? Obviously
> >> because "the measuring-rod applied to the periphery undergoes a
> >> Lorentzian contraction". Then why does the segment of the periphery,
> >> to which the measuring-rod is applied and which moves together with
> >> the measuring-rod, fail to undergo a Lorentzian contraction?

>
> The rod when measuring the radius has its long edge aligned in the

direction
> of a radial line, and so the long edge is not in the diretio of motion (it
> is a right angles to it) so you get no contraction in length of ruler (but
> you do get one in the width).
>
> When the rod is turned around to measure along the periphery, the long

edge
> of the rod aligned in the direction of motion and so it is contracted, but
> this time the width is not.
>
>



Réponse avec citation
  #4 (permalink)  
Vieux 31/01/2008, 03h06
Jeckyl
 
Messages: n/a
Par défaut Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY

"Maxime" <m.lenord***nospam.fr> wrote in message
news:47a139dd$0$907$ba4acef3***news.orange.fr...
> Est-il possible que les abérations que ces deux timbrés viennent d'écricre
> puissent être traduites en un français concis ? ? ? SVP


I would do it for you. But my french is not good enough to translate for
you. The best I could do is to use Google langauge tools, but you could do
that yourself


Réponse avec citation
  #5 (permalink)  
Vieux 31/01/2008, 03h12
Maxime
 
Messages: n/a
Par défaut Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY


"Jeckyl" <noone***nowhere.com> a écrit dans le message news:
13q2eq0etl39m6e***corp.supernews.com...
> "Maxime" <m.lenord***nospam.fr> wrote in message
> news:47a139dd$0$907$ba4acef3***news.orange.fr...
> > Est-il possible que les abérations que ces deux timbrés viennent

d'écricre
> > puissent être traduites en un français concis ? ? ? SVP

>
> I would do it for you. But my french is not good enough to translate for
> you. The best I could do is to use Google langauge tools, but you could

do
> that yourself


:-))

Un vraie humaniste ce type là !

Je ne savait pas qu'Einstein avait écrit ses textes en anglais.

Max


Réponse avec citation
  #6 (permalink)  
Vieux 31/01/2008, 03h17
Jeckyl
 
Messages: n/a
Par défaut Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY

"Maxime" <m.lenord***nospam.fr> wrote in message
news:47a13cbb$0$876$ba4acef3***news.orange.fr...
>
> "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
> 13q2eq0etl39m6e***corp.supernews.com...
>> "Maxime" <m.lenord***nospam.fr> wrote in message
>> news:47a139dd$0$907$ba4acef3***news.orange.fr...
>> > Est-il possible que les abérations que ces deux timbrés viennent

> d'écricre
>> > puissent être traduites en un français concis ? ? ? SVP

>>
>> I would do it for you. But my french is not good enough to translate for
>> you. The best I could do is to use Google langauge tools, but you could

> do
>> that yourself

>
> :-))
>
> Un vraie humaniste ce type là !
>
> Je ne savait pas qu'Einstein avait écrit ses textes en anglais.


A lot of Einstein's work has been translated into English. I think there
would be translations into French somewhere. I do not know where to find
them. Good luck.


Réponse avec citation
  #7 (permalink)  
Vieux 31/01/2008, 03h24
Maxime
 
Messages: n/a
Par défaut Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY


"Jeckyl" <noone***nowhere.com> a écrit dans le message news:
13q2feu6lnec84***corp.supernews.com...
> "Maxime" <m.lenord***nospam.fr> wrote in message
> news:47a13cbb$0$876$ba4acef3***news.orange.fr...
> >
> > "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
> > 13q2eq0etl39m6e***corp.supernews.com...
> >> "Maxime" <m.lenord***nospam.fr> wrote in message
> >> news:47a139dd$0$907$ba4acef3***news.orange.fr...
> >> > Est-il possible que les abérations que ces deux timbrés viennent

> > d'écricre
> >> > puissent être traduites en un français concis ? ? ? SVP
> >>
> >> I would do it for you. But my french is not good enough to translate

for
> >> you. The best I could do is to use Google langauge tools, but you

could
> > do
> >> that yourself

> >
> > :-))
> >
> > Un vraie humaniste ce type là !
> >
> > Je ne savait pas qu'Einstein avait écrit ses textes en anglais.

>
> A lot of Einstein's work has been translated into English. I think there
> would be translations into French somewhere. I do not know where to find
> them. Good luck.


Je ne sais pas si tu à la moindre conscience du crospost que tu viens de
faire sur fr.sci.philo et d'autres hiérarchies fr.

Max


Réponse avec citation
  #8 (permalink)  
Vieux 31/01/2008, 03h40
Jeckyl
 
Messages: n/a
Par défaut Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY

"Maxime" <m.lenord***nospam.fr> wrote in message
news:47a13f5c$0$860$ba4acef3***news.orange.fr...
>
> "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
> 13q2feu6lnec84***corp.supernews.com...
>> "Maxime" <m.lenord***nospam.fr> wrote in message
>> news:47a13cbb$0$876$ba4acef3***news.orange.fr...
>> >
>> > "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
>> > 13q2eq0etl39m6e***corp.supernews.com...
>> >> "Maxime" <m.lenord***nospam.fr> wrote in message
>> >> news:47a139dd$0$907$ba4acef3***news.orange.fr...
>> >> > Est-il possible que les abérations que ces deux timbrés viennent
>> > d'écricre
>> >> > puissent être traduites en un français concis ? ? ? SVP
>> >>
>> >> I would do it for you. But my french is not good enough to translate

> for
>> >> you. The best I could do is to use Google langauge tools, but you

> could
>> > do
>> >> that yourself
>> >
>> > :-))
>> >
>> > Un vraie humaniste ce type là !
>> >
>> > Je ne savait pas qu'Einstein avait écrit ses textes en anglais.

>>
>> A lot of Einstein's work has been translated into English. I think there
>> would be translations into French somewhere. I do not know where to find
>> them. Good luck.

>
> Je ne sais pas si tu à la moindre conscience du crospost que tu viens de
> faire sur fr.sci.philo et d'autres hiérarchies fr.


Blame the original poster who posted to the French groups. I only replied
to a message that was already cross-posted.


Réponse avec citation
  #9 (permalink)  
Vieux 31/01/2008, 03h44
Maxime
 
Messages: n/a
Par défaut Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY


"Jeckyl" <noone***nowhere.com> a écrit dans le message news:
13q2gpvagbcae3c***corp.supernews.com...
> "Maxime" <m.lenord***nospam.fr> wrote in message
> news:47a13f5c$0$860$ba4acef3***news.orange.fr...
> >
> > "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
> > 13q2feu6lnec84***corp.supernews.com...
> >> "Maxime" <m.lenord***nospam.fr> wrote in message
> >> news:47a13cbb$0$876$ba4acef3***news.orange.fr...
> >> >
> >> > "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
> >> > 13q2eq0etl39m6e***corp.supernews.com...
> >> >> "Maxime" <m.lenord***nospam.fr> wrote in message
> >> >> news:47a139dd$0$907$ba4acef3***news.orange.fr...
> >> >> > Est-il possible que les abérations que ces deux timbrés viennent
> >> > d'écricre
> >> >> > puissent être traduites en un français concis ? ? ? SVP
> >> >>
> >> >> I would do it for you. But my french is not good enough to

translate
> > for
> >> >> you. The best I could do is to use Google langauge tools, but you

> > could
> >> > do
> >> >> that yourself
> >> >
> >> > :-))
> >> >
> >> > Un vraie humaniste ce type là !
> >> >
> >> > Je ne savait pas qu'Einstein avait écrit ses textes en anglais.
> >>
> >> A lot of Einstein's work has been translated into English. I think

there
> >> would be translations into French somewhere. I do not know where to

find
> >> them. Good luck.

> >
> > Je ne sais pas si tu à la moindre conscience du crospost que tu viens de
> > faire sur fr.sci.philo et d'autres hiérarchies fr.

>
> Blame the original poster who posted to the French groups. I only replied
> to a message that was already cross-posted.


Bravo le sens de responsabilité !

Max


Réponse avec citation
  #10 (permalink)  
Vieux 31/01/2008, 03h49
Maxime
 
Messages: n/a
Par défaut Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY


"Maxime" <m.lenord***nospam.fr> a écrit dans le message news:
47a1440e$0$856$ba4acef3***news.orange.fr...
>
> "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
> 13q2gpvagbcae3c***corp.supernews.com...
> > "Maxime" <m.lenord***nospam.fr> wrote in message
> > news:47a13f5c$0$860$ba4acef3***news.orange.fr...
> > >
> > > "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
> > > 13q2feu6lnec84***corp.supernews.com...
> > >> "Maxime" <m.lenord***nospam.fr> wrote in message
> > >> news:47a13cbb$0$876$ba4acef3***news.orange.fr...
> > >> >
> > >> > "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
> > >> > 13q2eq0etl39m6e***corp.supernews.com...
> > >> >> "Maxime" <m.lenord***nospam.fr> wrote in message
> > >> >> news:47a139dd$0$907$ba4acef3***news.orange.fr...
> > >> >> > Est-il possible que les abérations que ces deux timbrés viennent
> > >> > d'écricre
> > >> >> > puissent être traduites en un français concis ? ? ? SVP
> > >> >>
> > >> >> I would do it for you. But my french is not good enough to

> translate
> > > for
> > >> >> you. The best I could do is to use Google langauge tools, but you
> > > could
> > >> > do
> > >> >> that yourself
> > >> >
> > >> > :-))
> > >> >
> > >> > Un vraie humaniste ce type là !
> > >> >
> > >> > Je ne savait pas qu'Einstein avait écrit ses textes en anglais.
> > >>
> > >> A lot of Einstein's work has been translated into English. I think

> there
> > >> would be translations into French somewhere. I do not know where to

> find
> > >> them. Good luck.
> > >
> > > Je ne sais pas si tu à la moindre conscience du crospost que tu viens

de
> > > faire sur fr.sci.philo et d'autres hiérarchies fr.

> >
> > Blame the original poster who posted to the French groups. I only

replied
> > to a message that was already cross-posted.


Tiens ! Pourquoi ne pas rajouter fr.sci.psychanalyse à ta liste, pendant que
tu y es. (Ca ne sera pas de ta faute ; juste une suggestion de ma part)

Max


Réponse avec citation
  #11 (permalink)  
Vieux 31/01/2008, 03h53
Jeckyl
 
Messages: n/a
Par défaut Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY

"Maxime" <m.lenord***nospam.fr> wrote in message
news:47a1440e$0$856$ba4acef3***news.orange.fr...
>
> "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
> 13q2gpvagbcae3c***corp.supernews.com...
>> "Maxime" <m.lenord***nospam.fr> wrote in message
>> news:47a13f5c$0$860$ba4acef3***news.orange.fr...
>> >
>> > "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
>> > 13q2feu6lnec84***corp.supernews.com...
>> >> "Maxime" <m.lenord***nospam.fr> wrote in message
>> >> news:47a13cbb$0$876$ba4acef3***news.orange.fr...
>> >> >
>> >> > "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
>> >> > 13q2eq0etl39m6e***corp.supernews.com...
>> >> >> "Maxime" <m.lenord***nospam.fr> wrote in message
>> >> >> news:47a139dd$0$907$ba4acef3***news.orange.fr...
>> >> >> > Est-il possible que les abérations que ces deux timbrés viennent
>> >> > d'écricre
>> >> >> > puissent être traduites en un français concis ? ? ? SVP
>> >> >>
>> >> >> I would do it for you. But my french is not good enough to

> translate
>> > for
>> >> >> you. The best I could do is to use Google langauge tools, but you
>> > could
>> >> > do
>> >> >> that yourself
>> >> >
>> >> > :-))
>> >> >
>> >> > Un vraie humaniste ce type là !
>> >> >
>> >> > Je ne savait pas qu'Einstein avait écrit ses textes en anglais.
>> >>
>> >> A lot of Einstein's work has been translated into English. I think

> there
>> >> would be translations into French somewhere. I do not know where to

> find
>> >> them. Good luck.
>> >
>> > Je ne sais pas si tu à la moindre conscience du crospost que tu viens
>> > de
>> > faire sur fr.sci.philo et d'autres hiérarchies fr.

>>
>> Blame the original poster who posted to the French groups. I only
>> replied
>> to a message that was already cross-posted.

>
> Bravo le sens de responsabilité !


I assume that you will no longer cross post your replies to the non-French
newsgroups


Réponse avec citation
  #12 (permalink)  
Vieux 31/01/2008, 03h53
Maxime
 
Messages: n/a
Par défaut Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY


"Maxime" <m.lenord***nospam.fr> a écrit dans le message news:
47a14563$0$881$ba4acef3***news.orange.fr...
>
> "Maxime" <m.lenord***nospam.fr> a écrit dans le message news:
> 47a1440e$0$856$ba4acef3***news.orange.fr...
> >
> > "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
> > 13q2gpvagbcae3c***corp.supernews.com...
> > > "Maxime" <m.lenord***nospam.fr> wrote in message
> > > news:47a13f5c$0$860$ba4acef3***news.orange.fr...
> > > >
> > > > "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
> > > > 13q2feu6lnec84***corp.supernews.com...
> > > >> "Maxime" <m.lenord***nospam.fr> wrote in message
> > > >> news:47a13cbb$0$876$ba4acef3***news.orange.fr...
> > > >> >
> > > >> > "Jeckyl" <noone***nowhere.com> a écrit dans le message news:
> > > >> > 13q2eq0etl39m6e***corp.supernews.com...
> > > >> >> "Maxime" <m.lenord***nospam.fr> wrote in message
> > > >> >> news:47a139dd$0$907$ba4acef3***news.orange.fr...
> > > >> >> > Est-il possible que les abérations que ces deux timbrés

viennent
> > > >> > d'écricre
> > > >> >> > puissent être traduites en un français concis ? ? ? SVP
> > > >> >>
> > > >> >> I would do it for you. But my french is not good enough to

> > translate
> > > > for
> > > >> >> you. The best I could do is to use Google langauge tools, but

you
> > > > could
> > > >> > do
> > > >> >> that yourself
> > > >> >
> > > >> > :-))
> > > >> >
> > > >> > Un vraie humaniste ce type là !
> > > >> >
> > > >> > Je ne savait pas qu'Einstein avait écrit ses textes en anglais.
> > > >>
> > > >> A lot of Einstein's work has been translated into English. I think

> > there
> > > >> would be translations into French somewhere. I do not know where

to
> > find
> > > >> them. Good luck.
> > > >
> > > > Je ne sais pas si tu à la moindre conscience du crospost que tu

viens
> de
> > > > faire sur fr.sci.philo et d'autres hiérarchies fr.
> > >
> > > Blame the original poster who posted to the French groups. I only

> replied
> > > to a message that was already cross-posted.

>
> Tiens ! Pourquoi ne pas rajouter fr.sci.psychanalyse à ta liste, pendant

que
> tu y es. (Ca ne sera pas de ta faute ; juste une suggestion de ma part)


Bon ! T'es qui toi, t'es d'où ? Pays de l'est n'est-ce pas ?

Max


Réponse avec citation
 
Réponse
Tags: , , , ,



Outils de la discussion
Modes d'affichage

Règles de messages
Vous pouvez ouvrir de nouvelles discussions : nonoui
Vous pouvez envoyer des réponses : nonoui
Vous pouvez insérer des pièces jointes : nonoui
Vous pouvez modifier vos messages : nonoui

Les balises BB sont activées : oui
Les smileys sont activés : oui
La balise [IMG] est activée : oui
Le code HTML peut être employé : non
Trackbacks are oui
Pingbacks are oui
Refbacks are oui


Discussions similaires

Discussion Auteur Forum Réponses Dernier message
ARTHUR EDDINGTON (AND DIVINE ALBERT) Pentcho Valev Newsgroup fr.sci.physique 14 02/08/2008 07h25
ARTHUR EDDINGTON (AND DIVINE ALBERT) Pentcho Valev Newsgroup fr.sci.astrophysique 15 02/08/2008 07h25
PERIMETER INSTITUTE AGAINST DIVINE ALBERT Pentcho Valev Newsgroup fr.sci.physique 3 30/06/2008 03h40
DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY Pentcho Valev Newsgroup fr.sci.physique 29 01/02/2008 00h29
Re: DIVINE ALBERT, POINCARE, NON-EUCLIDEAN GEOMETRY Ockham Newsgroup fr.sci.philo 24 01/02/2008 00h29


Fuseau horaire GMT. Il est actuellement 05h08.

Italiano - German - English - Español


Édité par : vBulletin® version 3.6.8
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.1.0 © 2007, Crawlability, Inc. Tous droits réservés.
Version française #13 par l'association vBulletin francophone


Politique - Droit - Philosophie - Football - Medicine - Française - Bricolage - Photo - Mac Os X - Divers - Physique - Jardinage
Mecanique - Moto - Photographie - Rail - Route - Aviation - Cinema - Linux - Psychanalyse - Finance - Enigmes - Rugby
Environnement - Histoire - Programmes TV - Education - Travail - Voyages - Windows - Immobilier - Cuisine
Windows XP - Excel - Word - Outlook - Access - Internet Explorer - Office - Vista

Page generated in 0,50819 seconds with 11 queries