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  1. #1
    Michael Weber's Avatar
    Michael Weber Guest

    Default Solar Sails driven by Photons or Particles?



    Hi,
    I have a discussion in a german newsgroup de.sci.raumfahrt :
    Message-ID: <1152083499.416363.186180@l70g2000cwa.googlegroups .com>

    The question is, what makes more pressure on the solarsails, the Photons or
    the Particles like Ions and Electrons?

    Wikipedia etc. don't give us the clue.

    Any help appreciated

    THX from Hanover, Germany

  2. #2
    Dr John Stockton's Avatar
    Dr John Stockton Guest

    Default Solar Sails driven by Photons or Particles?

    JRS: In article <sb3v486egtbh.7rd6kk8jwp34.dlg@40tude.net>, dated Fri,
    7 Jul 2006 01:15:56 remote, seen in news:uk.sci.astronomy, Michael Weber
    <123456789012345678901@gmx.de> posted :

    Photons. You should monitor sci.space.* where this has IIRC been dealt
    with.

    --
    © John Stockton, Surrey, UK. ?@merlyn.demon.co.uk Turnpike v4.00 MIME. ©
    Web <URL:http://www.merlyn.demon.co.uk/> - FAQqish topics, acronyms & links;
    Astro stuff via astron-1.htm, gravity0.htm ; quotings.htm, pascal.htm, etc.
    No Encoding. Quotes before replies. Snip well. Write clearly. Don't Mail News.

  3. #3
    Michael Weber's Avatar
    Michael Weber Guest

    Default Solar Sails driven by Photons or Particles?

    Am Fri, 7 Jul 2006 23:25:59 +0100 schrieb Dr John Stockton:


    Thanks. I'll subscribe sci.space.

    THX

  4. #4
    Michael Weber's Avatar
    Michael Weber Guest

    Default Solar Sails driven by Photons or Particles?

    Am Fri, 7 Jul 2006 23:25:59 +0100 schrieb Dr John Stockton:



    Sorry I my providers newsserver doesnt have sci.space did you mean
    sci.space.tech or sci.space.moderated - the are both moderated, or do you
    know a public newsserver that holds sci.space ?

    THX

  5. #5
    Mark McIntyre's Avatar
    Mark McIntyre Guest

    Default Solar Sails driven by Photons or Particles?

    On Sat, 8 Jul 2006 20:22:49 +0200, in uk.sci.astronomy , Michael Weber
    <123456789012345678901@gmx.de> wrote:


    He said sci.space.*

    The asterisk is the standard wildcard meaning "any group starting with
    sci.space."
    --
    Mark McIntyre

  6. #6
    Michael Weber's Avatar
    Michael Weber Guest

    Default Solar Sails driven by Photons or Particles?

    Am Sat, 08 Jul 2006 23:34:36 +0100 schrieb Mark McIntyre:


    OK, THX I got it...

 

 

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