This six minute video is very interesting. The description says:</p>
"Do you know about capillary action or medullary rays? If not, let Louis Sauzedde teach you a thing or two before you go building anything watertight." </p>
http://digg.com/video/a-shipwright-explains-the-difference-between-red-and-white-oak</p>
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"Do you know about capillary action or medullary rays? If not, let Louis Sauzedde teach you a thing or two before you go building anything watertight." </p>
http://digg.com/video/a-shipwright-explains-the-difference-between-red-and-white-oak</p>
</p>
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