Andere Treiber die in den packages dabei sind etwa fuer den DCP-150C oder den DCP-135C funktionieren nicht!]]>
http://www.umsu.de/magdalena/archiv/1286531580
2010-10-08T11:53:00+02:00Wenn der olle laptop wiedermal nicht bootet
Ubuntu CD einschieben, CD booten, (nicht direkt installieren)
die Laufwerke mounten (sda1, sda5 oder so), Home auf externe platte sichern.
Ubuntu installieren waehlen.
wenn man gefragt wird, gemountete Partionen nicht unmounten.
Es ist nicht offensichtlich, wie man in eine bestehende Partition rein installieren kann.
in Partitionstabelle 1. Auswahl ausgewaehlt lassen, es sollte dann (hoffentlich) eine Meldung kommen, dass irgendwas irgendwo nicht geht und man kann back druecken, dann kriegt man eine mount tabelle, wo man die sda1 als "/" mounten kann und die Daten Partition als "/home" so eintragen und abfeuern.
http://www.umsu.de/magdalena/archiv/1235681220
2009-02-26T21:47:00+01:00Compactified spaces
Normally, the dimensions d > 4 are discussed away from every day experience by claiming that they are compact and small and hence we cannot walk into them. They only unfold for a very high energetic probe.
At least in popular books these ideas are illustrated with a picture like this:
That is people tell you that you should imagine a small circle or (something more complicated as in the picture) attached at each point in your 4d space. That is you think of some lattice like in the picture, attach your circles and then take a continuum limit, ie let the circles move closer and closer together. Not so difficult is it? But this is blatantly wrong. Because according to this picture you have a compactified space at each point on the plane, but once you move into this plane, you get detached from the surface holding it. Whereas in reality at each point in the compact manifold there also extends the extended plane again. And from there it continues until you get mad.
That is to say the above picture is very different from the one of a infinite cylinder of radius R:
In the cylinder, which is extended in 1 dimension and compact along another, when you move along the circle at every point you have a inifinite line. Staying whith this two dimensions the above picture would correspond to a straight inifinite line, where there are circles attached at each point. So at every point in the line you are free to move into the circle or to continue along the line, but once you have left the line and entered a circle, there is really only one direction open to you until you have walked all along the circle.
Or take a torus (donut) which is 2 dimensional and compact in both directions. Each point is the intersection of two circles. The thing above isn't such.
Honestly, I can imagine 3 dimensions because that's the space I live in, and then I am fine with the fourth, because I know what time is, but all the other things I have no intuitive grasp.
J'ai pris l'image de ce site.Merci ]]>
http://www.umsu.de/magdalena/archiv/1235118840
2009-02-20T09:34:00+01:00Memo for myself...
Vielleicht hilft's ja irgendwann...]]>
http://www.umsu.de/magdalena/archiv/1234947420
2009-02-18T09:57:00+01:00Es wird immer widerlicher....Saustall aufgeraeumt haben und den lieben Herrn Mehdorn in die Wueste geschickt. Am Schluss ist dass alles nur eine Bereicherungsanstalt fuer Gutbetuchte auf dem Ruecken der Bahnfahrer, einfachen Bahnangestellten und Steuerzahler. Wahrscheinlich hat die Bahn einfach noch Glueck, dass grad alle damit beschaeftigt sind mit dem Finger auf die Banken zu zeigen. Wenn man schnell und koordiniert alle Reisenden einen Monat lang auf Alternativen umsteigen, dann ist Herr Mehdorn weg in Null Komma nix. Und warum auch nicht mit einer solchen Drohung diesen idiotischen Boersengang auch gleich noch vom Tisch wischen? Die deutschen Bahnfahrer wollen ihn ja nicht, dass hinreichend bekannt. Und fuer ne Bahn mit der keiner mehr faehrt zahlt auch keiner was an der Boerse.]]>
That is people tell you that you should imagine a small circle or (something more complicated as in the picture) attached at each point in your 4d space. That is you think of some lattice like in the picture, attach your circles and then take a continuum limit, ie let the circles move closer and closer together. Not so difficult is it? But this is blatantly wrong. Because according to this picture you have a compactified space at each point on the plane, but once you move into this plane, you get detached from the surface holding it. Whereas in reality at each point in the compact manifold there also extends the extended plane again. And from there it continues until you get mad.
That is to say the above picture is very different from the one of a infinite cylinder of radius R:
In the cylinder, which is extended in 1 dimension and compact along another, when you move along the circle at every point you have a inifinite line. Staying whith this two dimensions the above picture would correspond to a straight inifinite line, where there are circles attached at each point. So at every point in the line you are free to move into the circle or to continue along the line, but once you have left the line and entered a circle, there is really only one direction open to you until you have walked all along the circle. 