Liquid Mirror Could Peer From Moon


	Liquid Mirror Could Peer From Moon

invictus

6-23-2007 11:49 AM

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tags:

space, moon, optics, liquid mirror, science

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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://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/aab974f8-db39-4b3e-953e-8a910b62142d/996105C6-47C2-4374-B89B-1605608603FA/" 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://dsc.discovery.com/news/2007/06/21/liquidmirror_spa.html?category=space&guid=20070621100000&dcitc=w19-506-ak-0008" href="http://dsc.discovery.com/news/2007/06/21/liquidmirror_spa.html?category=space&guid=20070621100000&dcitc=w19-506-ak-0008" style="font-size: 11px;">dsc.discovery.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://dsc.discovery.com/news/2007/06/21/liquidmirror_spa.html?category=space&guid=20070621100000&dcitc=w19-506-ak-0008"><SPAN class="primeColor">Liquid Mirror Could Peer From Moon</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://dsc.discovery.com/news/2007/06/21/liquidmirror_spa.html?category=space&guid=20070621100000&dcitc=w19-506-ak-0008"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/dsc.discovery.com/img/380F7BF2-0E0B-4037-B33F-1C2ED6D618A3" alt="A Smooth, Sloshy Surface" /></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://dsc.discovery.com/news/2007/06/21/liquidmirror_spa.html?category=space&guid=20070621100000&dcitc=w19-506-ak-0008"><DIV>
					<B>June 21, 2007</B> — The first big telescope on the moon could be poured out of a barrel if Quebec astronomer Ermanno Borra has anything to do with it.</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://dsc.discovery.com/news/2007/06/21/liquidmirror_spa.html?category=space&guid=20070621100000&dcitc=w19-506-ak-0008">
Borra and his colleagues have managed to float a thin layer of silver on a non-evaporating "ionic liquid" — sort of a room-temperature, molten salt — to make a liquid mirror that could be used on the moon as a gigantic, super-powerful telescope.</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://dsc.discovery.com/news/2007/06/21/liquidmirror_spa.html?category=space&guid=20070621100000&dcitc=w19-506-ak-0008"><P>Ionic liquids are up to the task because they stay fluid down to about -145 degrees Fahrenheit (-98 degrees Centigrade) and don’t evaporate in a vacuum. The fluid could be poured out into a giant dish and gently spun — causing some of the liquid to move to the edges and form a naturally smooth and perfect curved surface to reflect and concentrate starlight.</P></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;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/996105C6-47C2-4374-B89B-1605608603FA/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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