ScienceShot: First Solar Sail Unfurls
in [Physics]
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From: Sam Wormley on 11 Jun 2010 20:30 ScienceShot: First Solar Sail Unfurls IKAROS spreads its wings and glides along on the sun's rays http://news.sciencemag.org/sciencenow/2010/06/scienceshot-first-solar-sail-unf.html?etoc Sailing though space on the ever-so-faint pressure of photons streaming from the sun used to be science fiction. But this week it became science fact as Japan's IKAROS spacecraft successfully spread its solar sail�the first time such a sail has been deployed in space.
From: Uncle Al on 12 Jun 2010 10:55 Sam Wormley wrote: > > ScienceShot: First Solar Sail Unfurls > IKAROS spreads its wings and glides along on the sun's rays > > http://news.sciencemag.org/sciencenow/2010/06/scienceshot-first-solar-sail-unf.html?etoc > > Sailing though space on the ever-so-faint pressure of photons streaming > from the sun used to be science fiction. But this week it became science > fact as Japan's IKAROS spacecraft successfully spread its solar sail�the > first time such a sail has been deployed in space. The solar wind is also making a contribution, including the recent M1-class billion tonne coronal mass ejection. If the solar sail is electrically conductive, add the interplanetary magnetic field and Lenz' law. One fat well-aimed sunspot will do it. Uncle Al predicts some vigorous backpedaling when navigation fails, plus physical failure of the sail from fast particle erosion. -- Uncle Al http://www.mazepath.com/uncleal/ (Toxic URL! Unsafe for children and most mammals) http://www.mazepath.com/uncleal/qz4.htm
From: Yousuf Khan on 12 Jun 2010 13:09 On 6/12/2010 8:55 PM, Uncle Al wrote: > Sam Wormley wrote: >> >> ScienceShot: First Solar Sail Unfurls >> IKAROS spreads its wings and glides along on the sun's rays >> >> http://news.sciencemag.org/sciencenow/2010/06/scienceshot-first-solar-sail-unf.html?etoc >> >> Sailing though space on the ever-so-faint pressure of photons streaming >> from the sun used to be science fiction. But this week it became science >> fact as Japan's IKAROS spacecraft successfully spread its solar sail—the >> first time such a sail has been deployed in space. > > The solar wind is also making a contribution, including the recent > M1-class billion tonne coronal mass ejection. If the solar sail is > electrically conductive, add the interplanetary magnetic field and > Lenz' law. > > One fat well-aimed sunspot will do it. Uncle Al predicts some > vigorous backpedaling when navigation fails, plus physical failure of > the sail from fast particle erosion. > Their next mission is a hybrid solar sail-ion propulsion system, set to sail to Jupiter and its Trojan asteroids. IKAROS Project｜JAXA Space Exploration Center http://www.jspec.jaxa.jp/e/activity/ikaros.html Yousuf Khan
From: MIB on 13 Jun 2010 23:45 "Uncle Al" <UncleAl0(a)hate.spam.net> wrote in message news:4C139FF7.8591C773(a)hate.spam.net... [snip] > One fat well-aimed sunspot will do it. Uncle Al predicts some > vigorous backpedaling when navigation fails, plus physical failure of > the sail from fast particle erosion. Hehe, Durex or Trojan?
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