Update about.html

Author: Gmac4247

about.html

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 <h1 style="font-size:160%;margin:7px">About the Core Geometric System ™</h1>
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 <h2 style="margin:12px">Once around 2018 I was wondering how to calculate the area of a circle.</h2>
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 <section><h2 itemrel="description" style="margin:12px">I remembered the number 3.14 called the pi, but I was interested in the logic of comparing the circle to a square.</h2>
 <p style="margin:12px">Because the square is the basis of area calculation. That is why we use square units. 
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@@ -118,15 +117,14 @@ <h2 style="margin:12px">Once around 2018 I was wondering how to calculate the ar
 Maybe that doesn't sound very scientific at first, but somehow I instantly realized that it is the only way.
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 Then I worked out the relationship between the radius and the side of the square algebraically via the Pythagorean theorem.
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+The result is that the area of a circle is exactly 3.2radius².
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 <iframe title="Geometry puzzle" width="420" height="315" src="https://youtube.com/embed/-gvXLaLFXuM">
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-The result is that the area of a circle is exactly 3.2radius².
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 <p style="margin:12px">That got me excited for obvious reasons, but also confused. Nobody thought of that before? Why is the pi so different?
@@ -149,21 +147,19 @@ <h2 itemrel="description" style="margin:12px">Meanwhile I figured that by extend
 <div itemscope itemtype="http://schema.org/VideoObject">
  <iframe title="The sphere experiment" width="420" height="315" src="https://youtube.com/embed/7uxyLfh2B38">
  </iframe>
+</div>
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 <p itemrel="description" style="margin:12px">
 The subject of the sphere experiment was a standard golf ball. That is not a perfect sphere because there are dimples on its surface. That can be compensated by calculating with a slightly shorter radius. 
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-The measuring bottle had a nominal volume of 4 cl (40 ml ~ 4 / 3 US ounce). That is not perfectly precise either because the nominal volume indicates the guaranteed amount of the fluid in it in commerce. They come with an air gap atop the fluid so the total capacity of the bottle is somewhat larger.
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+The measuring bottle had a nominal volume of 4 cl (40 ml ~ 4 / 3 US ounce). That is not perfectly precise either because the nominal volume indicates the guaranteed amount of the fluid in it in commerce. They come with an air gap atop the fluid so the total capacity of the bottle is somewhat larger.</p>
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 <div itemscope itemtype="http://schema.org/VideoObject">
  <iframe title="The sphere experiment 2" width="420" height="315" src="https://youtube.com/embed/rXcJhFLLP0Y">
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-<p style="margin:12px" itemrel="description">The second sphere experiment was done with the same ball and a nominal 5 ml syringe. The nominal volume of a syringe should be its real volume. However, I have measured its length and width to make sure and I found that its real volume is about 10% larger. I took that into account in the calculations.
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+<p style="margin:12px" itemrel="description">The second sphere experiment was done with the same ball and a nominal 5 ml syringe. The nominal volume of a syringe should be its real volume. However, I have measured its length and width to make sure and I found that its real volume is about 10% larger. I took that into account in the calculations.</p>
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@@ -211,8 +207,8 @@ <h2 itemrel="description" style="margin:12px">In early 2020 there were news abou
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-<iframe title="Introduction to basic geometry" width="420" height="315" src="https://youtube.com/embed/U5eHkmmVVEA">
-</iframe>
+<iframe title="Introduction to basic geometry" width="420" height="315" src="https://youtube.com/embed/U5eHkmmVVEA"></iframe>
+</div>
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 <p itemrel="description" style="margin:12px">Exactly determining the properties of different shapes is in the scope.</div>
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@@ -272,7 +268,6 @@ <h2 style="margin:12px" itemrel="description">While trying to explain it to othe
 Thank you for reading this and thanks to everyone making it possible.
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