○by <a href="sorae.html" target="_top">Color of the sky</a><br>
　・Why is the sky blue? 
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　・Why is a sunset red?
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○by <a href="niji.html">Rainbow</a><br>
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　The reason of we always look rainbow's color are in a line at same order. 
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<center><embed src="fukue.swf" width="550" height="550"></center>


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○by <a href="ororae.html">Aurora</a><br>
　Mechanism of aurora appeared.
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○by <a href="kageroe.html">Heat haze</a><br>
　Mechanism of heat haze appeared.
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