Update about.html

Author: Gmac4247

about.html

@@ -1017,8 +1017,7 @@ <h3 style="font-size:160%;margin:7px;">The circumference of a circle is derived
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-<h4 style="font-size:160%;margin:7px;">The volume of a sphere is defined by comparing it to a cube, since that is the base of volume calculation.
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+<h4 style="font-size:160%;margin:7px;">The volume of a sphere is defined by comparing it to a cube, since that is the base of volume calculation.</h4>
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  <iframe width="420" height="315" src="https://youtube.com/embed/7uxyLfh2B38">