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Electric Sail Prototype to Ride the Solar Wind
skwirlinator
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4-24-2008 8:36 PM
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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/f0edea7f-b50b-41ab-bafb-364071d8946f/F7E1E8CD-9780-456B-A494-491C6D54A267/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.space.com/php/multimedia/imagedisplay/img_display.php?pic=080423-iod-solarsail-02.jpg&cap=An+artist+concept+of+the+solar+sail.+The+center+package+contains+the+solar+panels+powering+an+electron+gun+that+keeps+the+many+tethers+charged.+Credit%3A+Allt+om+vetenskap" href="http://www.space.com/php/multimedia/imagedisplay/img_display.php?pic=080423-iod-solarsail-02.jpg&cap=An+artist+concept+of+the+solar+sail.+The+center+package+contains+the+solar+panels+powering+an+electron+gun+that+keeps+the+many+tethers+charged.+Credit%3A+Allt+om+vetenskap" style="font-size: 11px;">www.space.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.space.com/php/multimedia/imagedisplay/img_display.php?pic=080423-iod-solarsail-02.jpg&cap=An+artist+concept+of+the+solar+sail.+The+center+package+contains+the+solar+panels+powering+an+electron+gun+that+keeps+the+many+tethers+charged.+Credit%3A+Allt+om+vetenskap"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/www.space.com/img/660086D8-1D81-49DB-B6B0-3B7278B69BEF" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.space.com/php/multimedia/imagedisplay/img_display.php?pic=080423-iod-solarsail-02.jpg&cap=An+artist+concept+of+the+solar+sail.+The+center+package+contains+the+solar+panels+powering+an+electron+gun+that+keeps+the+many+tethers+charged.+Credit%3A+Allt+om+vetenskap"><FONT size="2" face="arial" color="#000000">An artist concept of the solar sail. The center package contains the solar panels powering an electron gun that keeps the many tethers charged. Credit: Allt om vetenskap</FONT></blockquote><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content6.clipmarks.com/images/clip-icon.gif" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.space.com/businesstechnology/080423-tw-finnish-solar-sail.html" href="http://www.space.com/businesstechnology/080423-tw-finnish-solar-sail.html" style="font-size: 11px;">www.space.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.space.com/businesstechnology/080423-tw-finnish-solar-sail.html"><SPAN>An electrically-charged solar sail with a possible "turbo" option may be ready for its first space trials in three years if scientists in Finland have their way.</SPAN></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.space.com/businesstechnology/080423-tw-finnish-solar-sail.html"><SPAN>"A flight out of the solar system to measure the gas, dust, plasma and magnetic field in the undisturbed interstellar space would perhaps be the 'flagship' thing to do," said <A name="OLE_LINK1">Pekka Janhunen</A>, a researcher developing the sail at the Finnish Meteorological Institute.</SPAN></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.space.com/businesstechnology/080423-tw-finnish-solar-sail.html"><SPAN>Two solar panels would power an electron gun that keeps the spacecraft tethers charged, creating propulsion from the similarly charged solar wind pushing against the sail. Researchers are looking into aluminum or copper alloy wires for the tethers.</SPAN></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.space.com/businesstechnology/080423-tw-finnish-solar-sail.html"><SPAN>The maiden mission would also test a concept to increase the thrust from the solar wind, called radio frequency electron heating.</SPAN></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;"> </td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/F7E1E8CD-9780-456B-A494-491C6D54A267/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>
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