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Groups > de.alt.folklore.computer > #52466
| From | Sebastian Barthel <naitsabes@freenet.de> |
|---|---|
| Newsgroups | de.alt.folklore.computer |
| Subject | Re: What's left of Usenet is here |
| Date | 2025-10-12 18:05 +0000 |
| Message-ID | <10cgqkq$ugvt$1@solani.org> (permalink) |
| References | (12 earlier) <7t68ea838ei35093bn3e8%sfroehli@Froehlich.Priv.at> <10ce3ri$u74e$1@dont-email.me> <1t68ea9d31i3644c0n3e8%sfroehli@Froehlich.Priv.at> <10cgg5v$ua84$1@solani.org> <slrn10enllh.qv2h.hjp-usenet4@trintignant.hjp.at> |
Am Sun, 12 Oct 2025 18:26:25 +0200 schrieb Peter J. Holzer: > On 2025-10-12 17:06, Sebastian Barthel <naitsabes@freenet.de> wrote: >> Am Sat, 11 Oct 2025 18:13:11 +0000 schrieb Stefan Froehlich: >>> On Sat, 11 Oct 2025 19:24:02 Thomas Koenig wrote: >>>> Ich bin ein großer Fan der nuklearen Salzwasser-Raktete >>>> https://en.wikipedia.org/wiki/Nuclear_salt-water_rocket , mit der wir > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ >>>> eine Chance hätten, wenigstens die Sterne unserer Nachbarschaft >>>> innerhalb einer Generation zu erreichen. >>> >>> Ich sage einmal so: Eine Reisezeit von 5 Jahren wäre übel, aber >>> vermutlich etwas, mit dem man zur Not noch umgehen könnte. >> >> Da kommst Du aber noch nichtmal aus dem Sonnensystem heraus ... >> >>> 60 Jahre bis Alpha Centauri? No way. >> >> Wo holst Du denn die 60 Jahre her ?? > > Aus dem von Thomas Koenig referenzierten Wikipedia-Artikel. OK. Danke. > Die Zahlen stammen aus dem Artikel von Robert Zubrin. Und ja, der Herr > tendiert zu etwas optimistischen Annahmen (ich habe "The Case for Mars" > von ihm gelesen). Und das ist noch sehr vorsichtig formuliert. ... Ich vermute mal, daß schon der erste Fehler sein wird, daß nicht mitberechnet ist, daß man ja die 30.000 Tonnen Eiswasserasteroid und die 7.500 Tonnen "Brennmaterial" auch mitbeschleunigen muß. Das sieht natürlich mit den nur (lächerlichen) 300 Tonnen "spacecraft"-Gewicht dann schon rechnerisch anders aus. Das nächste ist dann, daß 300 Tonnen Gewicht für ein Raumschiff, auf dem 60 Jahre lang eine Crew von z.B. 200 (?) Leuten leben können soll, vmtl einfach bißchen wenig sein dürfte. Also vielleicht, wenn die alle Yogi's sind und mit komplett reduziertem Stoffwechsel je in einem Schrank sitzen können - sonst wird das so nix. Außerdem ist das ganze Ding sowas wie ein fliegender Sprengsatz mit heikler Regulierung - zwischen komplett Aus- und etwas heftigem An- Zustand. Beide Fälle kann sich so ein Raumschiff nicht erlauben ... Und: 200 sind dann für den Aufbau einer lebensfähigen und genetisch stabilen Population wohl eher zu wenig. Aber dafür hat man ja die Blasenkeime dabei, die dann jedem Astronauten kurz vor Ankunft ins Peritoneum eingepflanzt werden. Und eine Atmosphäre wird dann vor Ort geschaffen. Alles klar ... klingt nach einem Superplan ... :) Das verlinkte Magnetsegel ist auch sowas extrem Abgefahrenes. ... Da ist ja ein Weltraumaufzug (apropos das Verlassen des Heimatplaneten ist vmtl auch oben nicht eingerechnet ... nur das Erreichen von 7% Lichtgeschwindigkeit ; müßte man wirklich mal nachlesen) ein echt baubares Ding dagegen. Als Ideen aber schon interessant ... trotzdem bleibt es dann wohl vorerst bei den "realistischen" 75.000 Jahren bei Voyager Geschwindigkeit.
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Re: What's left of Usenet is here Michael Kraemer <m.kraemer@gsi.de> - 2025-10-04 16:34 +0200
Re: What's left of Usenet is here Sebastian Barthel <naitsabes@freenet.de> - 2025-10-04 17:20 +0000
Re: What's left of Usenet is here Michael Noe <michaelnoeusenet@mac.com> - 2025-10-05 03:55 +0000
Re: What's left of Usenet is here Başar Alabay <alabay@gmx.net> - 2025-10-05 15:01 +0000
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-05 17:12 +0200
Re: What's left of Usenet is here Andreas Bockelmann <xotzil@gmx.de> - 2025-10-06 13:59 +0200
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-06 18:31 +0200
Re: What's left of Usenet is here Gerrit Heitsch <gerrit@laosinh.s.bawue.de> - 2025-10-06 18:41 +0200
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-06 18:50 +0200
Re: What's left of Usenet is here Ulf Kutzner <user2991@newsgrouper.org.invalid> - 2025-10-06 17:03 +0000
Re: What's left of Usenet is here Arno Welzel <usenet@arnowelzel.de> - 2025-10-06 22:45 +0200
Re: What's left of Usenet is here Diedrich Ehlerding <diedrich.ehlerding@t-online.de> - 2025-10-07 09:40 +0200
Re: What's left of Usenet is here Ulf Kutzner <user2991@newsgrouper.org.invalid> - 2025-10-07 08:36 +0000
Re: What's left of Usenet is here Arno Welzel <usenet@arnowelzel.de> - 2025-10-06 22:44 +0200
Re: What's left of Usenet is here Andreas Bockelmann <xotzil@gmx.de> - 2025-10-07 10:16 +0200
Re: What's left of Usenet is here Andreas Bockelmann <xotzil@gmx.de> - 2025-10-09 09:54 +0200
Re: What's left of Usenet is here Marco Moock <mm+solani@dorfdsl.de> - 2025-10-07 21:03 +0200
Re: What's left of Usenet is here Arno Welzel <usenet@arnowelzel.de> - 2025-10-08 22:11 +0200
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-07 09:26 +0200
Re: What's left of Usenet is here Kay Martinen <usenet@martinen.de> - 2025-11-19 19:46 +0100
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-11-19 20:12 +0100
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-11-20 10:22 +0100
Re: What's left of Usenet is here Ulf Kutzner <user2991@newsgrouper.org.invalid> - 2025-11-20 09:35 +0000
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-11-20 19:22 +0100
Re: What's left of Usenet is here Ulf Kutzner <user2991@newsgrouper.org.invalid> - 2026-06-15 11:49 +0000
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2026-06-15 14:44 +0200
Re: What's left of Usenet is here Kay Martinen <usenet@martinen.de> - 2026-06-15 20:27 +0200
Re: What's left of Usenet is here Ulf Kutzner <user2991@newsgrouper.org.invalid> - 2026-06-16 08:07 +0000
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2026-06-16 18:48 +0200
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-11-20 19:21 +0100
Re: What's left of Usenet is here Kay Martinen <usenet@martinen.de> - 2025-11-12 21:08 +0100
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-11-13 18:44 +0100
Re: What's left of Usenet is here Kay Martinen <usenet@martinen.de> - 2025-11-12 20:49 +0100
Re: What's left of Usenet is here Diedrich Ehlerding <diedrich.ehlerding@t-online.de> - 2025-11-13 13:26 +0100
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-05 11:00 +0200
Re: What's left of Usenet is here Sebastian Barthel <naitsabes@freenet.de> - 2025-10-06 19:37 +0000
Re: What's left of Usenet is here Marco Moock <mm+solani@dorfdsl.de> - 2025-10-07 21:09 +0200
Re: What's left of Usenet is here Arno Welzel <usenet@arnowelzel.de> - 2025-10-08 22:13 +0200
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-08 07:50 +0200
Re: What's left of Usenet is here Sebastian Barthel <naitsabes@freenet.de> - 2025-10-08 14:30 +0000
Re: What's left of Usenet is here Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-10-08 18:56 +0000
Re: What's left of Usenet is here Christian Weisgerber <naddy@mips.inka.de> - 2025-10-08 19:26 +0000
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-08 21:53 +0200
Re: What's left of Usenet is here Andreas Eder <a_eder_muc@web.de> - 2025-11-01 13:20 +0100
Re: What's left of Usenet is here "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-11-01 14:53 +0100
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-11-02 11:14 +0100
Re: sf (was: What's left of Usenet is here ) Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-08 21:51 +0200
Re: What's left of Usenet is here Arno Welzel <usenet@arnowelzel.de> - 2025-10-08 22:16 +0200
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-09 05:25 +0200
Re: What's left of Usenet is here Michael Kraemer <m.kraemer@gsi.de> - 2025-10-09 13:42 +0200
Re: What's left of Usenet is here Sebastian Barthel <naitsabes@freenet.de> - 2025-10-09 20:02 +0000
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-10 07:51 +0200
Re: What's left of Usenet is here Harold Winter <SJJADEWRWQAX@spammotel.com> - 2025-10-10 09:15 +0000
Re: What's left of Usenet is here Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-10-10 13:08 +0200
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-10 19:27 +0200
Re: What's left of Usenet is here Sebastian Barthel <naitsabes@freenet.de> - 2025-10-10 18:20 +0000
Re: What's left of Usenet is here Thomas Koenig <tkoenig@netcologne.de> - 2025-10-11 09:41 +0000
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-11 12:27 +0200
Re: What's left of Usenet is here Michael Kraemer <m.kraemer@gsi.de> - 2025-10-11 12:04 +0200
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-11 12:29 +0200
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-11 16:38 +0200
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-11 16:50 +0200
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-11 16:51 +0200
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-11 16:52 +0200
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-11 16:53 +0200
Re: What's left of Usenet is here Sebastian Barthel <naitsabes@freenet.de> - 2025-10-11 15:08 +0000
Re: What's left of Usenet is here Sebastian Barthel <naitsabes@freenet.de> - 2025-10-12 18:21 +0000
Re: What's left of Usenet is here Ulf Kutzner <user2991@newsgrouper.org.invalid> - 2025-10-13 07:27 +0000
Re: What's left of Usenet is here Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-10-13 15:42 +0000
Re: What's left of Usenet is here Guido Grohmann <guido.grohmann@gmx.de> - 2025-10-12 18:15 +0200
Re: What's left of Usenet is here Michael Kraemer <m.kraemer@gsi.de> - 2025-10-13 12:19 +0200
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-10 13:38 +0200
Re: What's left of Usenet is here Sebastian Barthel <naitsabes@freenet.de> - 2025-10-10 18:12 +0000
Re: What's left of Usenet is here Michael Kraemer <m.kraemer@gsi.de> - 2025-10-11 11:49 +0200
Re: What's left of Usenet is here "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-10-11 14:00 +0200
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-11 14:14 +0200
Re: What's left of Usenet is here Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-10-11 16:23 +0000
Re: What's left of Usenet is here Thomas Koenig <tkoenig@netcologne.de> - 2025-10-11 17:24 +0000
Re: What's left of Usenet is here Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-10-11 18:13 +0000
Re: What's left of Usenet is here Sebastian Barthel <naitsabes@freenet.de> - 2025-10-12 15:06 +0000
Nukleare Salzwasserraketen und Generationenschiffe (was: What's left of Usenet is here) Thomas Koenig <tkoenig@netcologne.de> - 2025-10-12 16:21 +0000
Re: What's left of Usenet is here "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-10-12 18:26 +0200
Re: What's left of Usenet is here Sebastian Barthel <naitsabes@freenet.de> - 2025-10-12 18:05 +0000
Re: What's left of Usenet is here "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-10-12 20:37 +0200
Re: What's left of Usenet is here Frank Nitzschner <nospam@nitzschner.de> - 2025-10-13 07:20 +0200
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-13 14:29 +0200
Re: What's left of Usenet is here Ulf Kutzner <user2991@newsgrouper.org.invalid> - 2025-10-13 07:33 +0000
Re: What's left of Usenet is here Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-10-13 15:47 +0000
Re: What's left of Usenet is here "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-10-13 19:13 +0200
Re: What's left of Usenet is here Thomas Koenig <tkoenig@netcologne.de> - 2025-10-13 17:42 +0000
Re: What's left of Usenet is here Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-10-13 18:11 +0000
Re: What's left of Usenet is here "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-10-13 20:17 +0200
Re: What's left of Usenet is here Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-10-13 19:47 +0000
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-11 12:09 +0200
Re: What's left of Usenet is here Ulf Kutzner <user2991@newsgrouper.org.invalid> - 2025-10-10 08:34 +0000
Re: What's left of Usenet is here Dennis Grevenstein <dennis.grevenstein@gmail.com> - 2025-10-11 06:40 +0000
Re: What's left of Usenet is here Michael Kraemer <m.kraemer@gsi.de> - 2025-10-11 11:45 +0200
Re: What's left of Usenet is here Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-10-11 12:37 +0200
Re: What's left of Usenet is here Michael Kraemer <m.kraemer@gsi.de> - 2025-10-05 11:39 +0200
Re: What's left of Usenet is here Ulf Kutzner <user2991@newsgrouper.org.invalid> - 2025-10-05 10:02 +0000
Re: What's left of Usenet is here Michael Noe <michaelnoeusenet@mac.com> - 2025-10-05 10:22 +0000
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-05 12:15 +0200
Re: What's left of Usenet is here Christian Weisgerber <naddy@mips.inka.de> - 2025-10-05 21:29 +0000
Re: What's left of Usenet is here Michael Noe <michaelnoeusenet@mac.com> - 2025-10-06 04:54 +0000
Re: What's left of Usenet is here Dennis Grevenstein <dennis.grevenstein@gmail.com> - 2025-10-06 05:08 +0000
Re: What's left of Usenet is here Marco Moock <mm+solani@dorfdsl.de> - 2025-10-05 12:20 +0200
Re: What's left of Usenet is here Ulf Kutzner <user2991@newsgrouper.org.invalid> - 2025-10-05 10:22 +0000
Re: What's left of Usenet is here Dennis Grevenstein <dennis.grevenstein@gmail.com> - 2025-10-05 12:53 +0000
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-05 17:10 +0200
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-05 16:25 +0200
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-05 16:51 +0200
Re: What's left of Usenet is here Marco Moock <mm+solani@dorfdsl.de> - 2025-10-05 17:12 +0200
Re: What's left of Usenet is here michaelnoeusenet@mac.com (Michael Noe) - 2025-10-05 17:30 +0200
Re: What's left of Usenet is here Ulf Kutzner <user2991@newsgrouper.org.invalid> - 2025-10-09 07:21 +0000
Re: What's left of Usenet is here Andreas Bockelmann <xotzil@gmx.de> - 2025-10-09 10:00 +0200
Re: What's left of Usenet is here Thomas Koenig <tkoenig@netcologne.de> - 2025-10-04 18:57 +0000
Re: What's left of Usenet is here Bernd Laengerich <Bernd.Laengerich@web.de> - 2025-10-13 18:52 +0200
Re: What's left of Usenet is here Joerg Walther <joerg.walther@magenta.de> - 2025-10-14 10:20 +0200
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