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	<title>Comments on: Biomimicry: Design Ideas from Nature</title>
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	<description>design, build, test, iterate.</description>
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		<title>By: Brian</title>
		<link>http://principialabs.com/biomimicry-design-ideas-from-nature/#comment-43</link>
		<dc:creator>Brian</dc:creator>
		<pubDate>Sat, 08 Mar 2008 13:23:02 +0000</pubDate>
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		<description>&lt;p&gt;Here’s another one from Technology Review. Scientists have long suspected that the bumps on a humpback whale’s flippers give them their great agility and provide some sort of hydrodynamic advantage. Engineers at Harvard’s School of Engineering and Applied Sciences have recently &lt;a href=&quot;http://www.technologyreview.com/Energy/20379/&quot; rel=&quot;nofollow&quot;&gt;tested this theory in a wind tunnel&lt;/a&gt;, and found that bumps on the leading edges of wings can increase critical angle-of-attack (the angle at which the wing stalls and loses lift) by as much as forty percent!&lt;/p&gt;
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		<content:encoded><![CDATA[<p>Here’s another one from Technology Review. Scientists have long suspected that the bumps on a humpback whale’s flippers give them their great agility and provide some sort of hydrodynamic advantage. Engineers at Harvard’s School of Engineering and Applied Sciences have recently <a href="http://www.technologyreview.com/Energy/20379/" rel="nofollow">tested this theory in a wind tunnel</a>, and found that bumps on the leading edges of wings can increase critical angle-of-attack (the angle at which the wing stalls and loses lift) by as much as forty percent!</p>
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		<title>By: Brian</title>
		<link>http://principialabs.com/biomimicry-design-ideas-from-nature/#comment-42</link>
		<dc:creator>Brian</dc:creator>
		<pubDate>Thu, 06 Mar 2008 20:26:40 +0000</pubDate>
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		<description>&lt;p&gt;Here’s a great example of biomimicry from Technology Review, in which the microscopic structure of mother-of-pearl becomes the model for a new nanomaterial that is stronger and lighter than the metals it replaces. Read “&lt;a href=&quot;http://www.technologyreview.com/Nanotech/20333/&quot; rel=&quot;nofollow&quot;&gt;Strong, Light, and Stretchy Materials&lt;/a&gt;” for more details.&lt;/p&gt;
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		<content:encoded><![CDATA[<p>Here’s a great example of biomimicry from Technology Review, in which the microscopic structure of mother-of-pearl becomes the model for a new nanomaterial that is stronger and lighter than the metals it replaces. Read “<a href="http://www.technologyreview.com/Nanotech/20333/" rel="nofollow">Strong, Light, and Stretchy Materials</a>” for more details.</p>
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