S
skinnyfat
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For those of you who don't know what they are and for those of you that do and just like to read :077:
http://www.glenbrook.k12.il.us/gbssci/Phys/mmedia/waves/swf.html
http://www.glenbrook.k12.il.us/gbssci/Phys/mmedia/waves/swf.html