The shark coating | Clipmarks


	The shark coating

mikosilk

5-21-2008 5:39 PM

555 views

2 Comments |

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5-21-2008 8:17 PM

tanyamm

Another excellent and informative clip.

5-22-2008 7:12 AM

juliedawn

I've never been close enough to a shark, to touch it. I certainly don't want to be that close to a Great White.

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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/f20b5e16-2ca6-48f9-99b4-005332f58590/8D3903CB-B397-40A0-9C59-171E92439C96/" 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://news.softpedia.com/news/The-Shark-Coating-42520.shtml" href="http://news.softpedia.com/news/The-Shark-Coating-42520.shtml" style="font-size: 11px;">news.softpedia.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.softpedia.com/news/The-Shark-Coating-42520.shtml"><H1 id="hot_title">The Shark Coating </H1></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://news.softpedia.com/news/The-Shark-Coating-42520.shtml"><DIV>
			<DIV><IMG border="0" alt="" src="http://news.softpedia.com/images//news2/The-Shark-Coating-2.jpg" /></DIV>Have you ever touched shark skin? It is very abrasive, like sand paper. </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://news.softpedia.com/news/The-Shark-Coating-42520.shtml"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/news.softpedia.com/img/0E17238C-1F0B-44C1-B5A1-85DF2A3CA4B1" 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://news.softpedia.com/news/The-Shark-Coating-42520.shtml"><DIV>
This is due to a special type of scales, called placoid ("slate-like") (photo: scales of great white shark), very similar structurally to teeth and carrying tiny ridge-like structures. The tiny ridges arranged parallel to the swimming direction - known as "riblets" - decrease drag in water, explaining the amazing speed that some sharks reach with minimal effort. </DIV></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/8D3903CB-B397-40A0-9C59-171E92439C96/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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