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<div class="yiv8537538201MsoNormal"><span style="font-size:16.0pt;">É preciso ter o Mathematica Player (FREE):</span><u></u><u></u></div>
<div class="yiv8537538201MsoNormal"><a rel="nofollow" shape="rect" target="_blank" href="http://www.wolfram.com/products/player/download.cgi">http://www.wolfram.com/products/player/download.cgi</a><u></u><u></u></div>
<div class="yiv8537538201MsoNormal"><span style="font-size:14.0pt;"> </span><u></u><u></u></div>
<div class="yiv8537538201MsoNormal"><span lang="EN-US" style="font-size:14.0pt;">Huygens's Principle</span><u></u><u></u></div>
<div class="yiv8537538201MsoNormal"><a rel="nofollow" shape="rect" target="_blank" href="http://demonstrations.wolfram.com/HuygenssPrinciple/"><span lang="EN-US">http://demonstrations.wolfram.com/HuygenssPrinciple/</span></a><u></u><u></u></div>
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<div class="yiv8537538201MsoNormal"><span style="font-size:1.0pt;color:white;">.<u></u><u></u></span></div>
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