Dirt-repelling tube promises cheap, pure water


	Dirt-repelling tube promises cheap, pure water
A53GG4
7-15-2008 10:44 PM
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tags:
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://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/61eee648-1d60-4101-8e58-2fbe185a3101/B08B85FD-ABC4-4738-805B-30FEE58D1707/" 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://technology.newscientist.com/channel/tech/dn14324-dirtrepelling-tube-promises-cheap-pure-water.html?feedId=tech_rss20" href="http://technology.newscientist.com/channel/tech/dn14324-dirtrepelling-tube-promises-cheap-pure-water.html?feedId=tech_rss20" style="font-size: 11px;">technology.newscientist.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://technology.newscientist.com/channel/tech/dn14324-dirtrepelling-tube-promises-cheap-pure-water.html?feedId=tech_rss20"><H4 class="inline">Dirt-repelling tube promises cheap, pure water</H4></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://technology.newscientist.com/channel/tech/dn14324-dirtrepelling-tube-promises-cheap-pure-water.html?feedId=tech_rss20"><li style="margin-left:16px;padding-left: 0px;">
16:26 15 July 2008
</LI></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://technology.newscientist.com/channel/tech/dn14324-dirtrepelling-tube-promises-cheap-pure-water.html?feedId=tech_rss20"><li style="margin-left:16px;padding-left: 0px;">
NewScientist.com news service
</LI></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://technology.newscientist.com/channel/tech/dn14324-dirtrepelling-tube-promises-cheap-pure-water.html?feedId=tech_rss20"><li style="margin-left:16px;padding-left: 0px;">Jon Evans </LI></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://technology.newscientist.com/channel/tech/dn14324-dirtrepelling-tube-promises-cheap-pure-water.html?feedId=tech_rss20"><P>An entirely new way of purifying water has been discovered by scientists in the US. The technique is based on the discovery that water-attracting materials seem to repel impurities, leaving a layer of pure water near their surface.</P></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://technology.newscientist.com/channel/tech/dn14324-dirtrepelling-tube-promises-cheap-pure-water.html?feedId=tech_rss20"><P>In 2003, <A target="NS" href="http://depts.washington.edu/bioe/people/core/pollack/pollack.html" linkindex="21">Gerald Pollack</A> and his colleagues at the University of Washington, Seattle, discovered a process known as the "particle-exclusion phenomenon".</P></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://technology.newscientist.com/channel/tech/dn14324-dirtrepelling-tube-promises-cheap-pure-water.html?feedId=tech_rss20"><P>They found that particles dissolved in water naturally move away from a hydrophilic, or water-loving, surface, leaving pure water behind.</P></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://technology.newscientist.com/channel/tech/dn14324-dirtrepelling-tube-promises-cheap-pure-water.html?feedId=tech_rss20"><P>What was really surprising was quite how far the particles would move – up to several tenths of a millimetre. This is much further than predicted by conventional theories.</P></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://technology.newscientist.com/channel/tech/dn14324-dirtrepelling-tube-promises-cheap-pure-water.html?feedId=tech_rss20"><H5>Pure water</H5></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://technology.newscientist.com/channel/tech/dn14324-dirtrepelling-tube-promises-cheap-pure-water.html?feedId=tech_rss20">Pollack believes the phenomenon is caused by water molecules forming into a liquid-crystal-like array that sits on the hydrophilic surface. </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/B08B85FD-ABC4-4738-805B-30FEE58D1707/blog/" title="blog or email this clip"><img src="http://content6.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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