Update about.html

Author: Gmac4247

about.html

@@ -96,10 +96,10 @@ <h1 style="font-size:160%;margin:7px">About the Core Geometric System ™</h1>
 <br>
 <br>
 <article>
-<h2 style="margin:12px">Once around 2018 I was wondering how to calculate the area of a circle.</h2>
+<h2 itemprop="about" style="margin:12px">Once around 2018 I was wondering how to calculate the area of a circle.</h2>
 <br>
 <section itemscope itemtype="http://schema.org/Article">
-<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>
+<section><h2 itemprop="disambiguatingDescription" 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. 
 <br>
 The only problem with that was that the circle is not square. I have figured that the circle can be cut into four and then I get four right angles that can be aligned with the vertices of a square.
@@ -138,7 +138,7 @@ <h2 style="margin:12px">Once around 2018 I was wondering how to calculate the ar
 <br>
 <br>
 <section>
-<h2 itemrel="description" style="margin:12px">Meanwhile I figured that by extending the area of a circle to 3D, the volume of a sphere equals the cubed value of the square root of its cross-sectional area, just like a cube.</h2>
+<h2 itemprop="description" style="margin:12px">Meanwhile I figured that by extending the area of a circle to 3D, the volume of a sphere equals the cubed value of the square root of its cross-sectional area, just like a cube.</h2>
 <p style="margin:12px">It's quite hard to physically accurately measure the volume of a ball, but there's a significant difference between the result of my V=(√(3.2)r)³ formula and the conventional " 4 / 3 × pi × r³ ". 
 <br>
 <br>
@@ -150,7 +150,7 @@ <h2 itemrel="description" style="margin:12px">Meanwhile I figured that by extend
  </iframe>
 </div>
 <br>
-<p itemrel="description" style="margin:12px">
+<p 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. 
 <br>
 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>
@@ -165,14 +165,14 @@ <h2 itemrel="description" style="margin:12px">Meanwhile I figured that by extend
 <br>
 <br>
 <section>
-<h2 itemrel="description" style="margin:12px">I have derived the volume of a cone by comparing a vertical quadrant of a cone to an octant of a sphere.</h2>
+<h2 itemprop="description" style="margin:12px">I have derived the volume of a cone by comparing a vertical quadrant of a cone to an octant of a sphere.</h2>
 <p style="margin:12px">First I made a mistake in that. I knew that the height has to be divided by 2, not 3 as they usually do it, but I confused the vertical height with the slant height and I divided it by 2 only once, instead of twice. That resulted in an error.
 </p>
 </section>
 <br>
 <br>
 <section>
-<h2 itemrel="description" style="margin:12px">In early 2020 there were news about that online education was introduced because of the pandemic.</h2>
+<h2 itemprop="description" style="margin:12px">In early 2020 there were news about that online education was introduced because of the pandemic.</h2>
 <p style="margin:12px">I thought it was time to share my discoveries online, so I went to the local public library to publish them on a webpage. My volume formula for a cone and a pyramid was undeveloped and I didn't have much web development skills but I had to start somewhere. My attention was divided by lots of details in both geometry and IT.
 <br>
 <br>
@@ -211,10 +211,10 @@ <h2 itemrel="description" style="margin:12px">In early 2020 there were news abou
 <iframe title="Introduction to basic geometry" width="420" height="315" src="https://youtube.com/embed/U5eHkmmVVEA"></iframe>
 </div>
 <br>
-<p itemrel="description" style="margin:12px">Exactly determining the properties of different shapes is in the scope.</p>
+<p itemprop="description" style="margin:12px">Exactly determining the properties of different shapes is in the scope.</p>
 <br>
 <br>
-<h2 style="margin:12px" itemrel="description">I named my framework the Core Geometric System ™ and put the trademark symbol on it to indicate that this not just another abstract geometric system.</h2>
+<h2 style="margin:12px">I named my framework the Core Geometric System ™ and put the trademark symbol on it to indicate that this not just another abstract geometric system.</h2>
 <p style="margin:12px">The name reflects that my logic is built in accordance with the core principles of elementary mathematics. That is something that people assume of the conventional one and they have no idea how badly it deviated from that.
 <br>
 <br>
@@ -227,7 +227,7 @@ <h2 style="margin:12px" itemrel="description">I named my framework the Core Geom
 <br>
 <br>
 <section>
-<h2 style="margin:12px" itemrel="description">In 2024 I fixed the numeric value for my cone and pyramid volume formula. </h2>
+<h2 itemprop="description" style="margin:12px">In 2024 I fixed the numeric value for my cone and pyramid volume formula. </h2>
 <p style="margin:12px">I'm sorry about that I had presented a wrong number for such a long time, but at least my logic was closer to reality.
 <br>
 <br>
@@ -248,7 +248,7 @@ <h2 style="margin:12px" itemrel="description">In 2024 I fixed the numeric value
 <br>
 <br>
 <section>
-<h2 style="margin:12px" itemrel="description">While trying to explain it to others, I have found that different people have different levels of education.</h2>
+<h2 itemprop="usageInfo" style="margin:12px">While trying to explain it to others, I have found that different people have different levels of education.</h2>
 <p style="margin:12px">I thought I can't just start the explanation with the numbers and basic operations.
 <br>
 Then I realized that I can.