Samaa tarkoittava suhdelaskenta
 Equivalent Proportional Calculation
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Miksi muinaisuus oli meitä edellä monissa asioissa? Why was antiquity ahead of us in many things?
Let's take a new topic and put mathematical history in a new form.
786,000 Years Ago As the polarity of Earth's magnetic field periodically decreases, it has changed 400 times over the past 330 million years. The decline has been fifteen percent in the last 150 years. The duration of the polarity is hundreds of thousands of years and the last change happened 786,000 years ago. 0.786 x 4 = π 80,000 Years Ago
50,000 Years Ago in Somewhere The history of the circle is unknown. Perhaps with a stick in hand, a round shape was created on the sand, which fascinated with its symmetrical shape? Geometry took the first form of what turned out to be mathematics, but only much later. 45,000 Years Ago in Somewhere 40,000 years ago, no one was going to Canada, as our compass needle points. People went north or south. The thickest branches of the trees pointed in this direction. The geometry of past antiquity was practical mathematics, which you can read about on my website. 45,000 Years Ago in Somewhere
45,000 Years Ago
 Ancient geometry was practical and based on values determined by nature. Not the memorized surface areas and volumes we learn in school. We have not heard of the geometry of the quarter circle on which antiquity was based. This time determining the direction more accurately than just a compass.We need location-corrected maps for this, but more on that later.
 As animals teach their young, humans taught their children. There was no blackboard, but sand and stick in hand made up for it. They used the round shape and the division into four parts in many ways.Ancient temperatures as the geometry of a quarter circle of a circle.
Placement of the living in the surrounding world in the ancient way.
20,000 Years Ago or more In the 2020s, a prehistoric pyramid buried in Gunung Padang, West Java, Indonesia has been discovered. The oldest structure in the area has been a mound of lava that was carved into shape and then architecturally encased during the last ice age between 25,000 and 14,000 BC. We can be sure that the pyramids have existed for a long time beyond our understanding.8,000 Years Ago or more The most precisely aligned is the Pyramid of Khufu (Cheops) at Giza, also known as the Great Pyramid, whose sides deviate from true north by an average of less than 3 minutes of arc. How do you think the Egyptian culture aligned this structure so precisely? The next structure with similar accuracy almost 8000 years later. We can assume that mathematics had a role in this.
8,000 Years Ago
Someone collected small stones and placed them on the ground to see them. One stone didn't give an information of another stone. These were just a bunch of stones that had no meaning.
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While searching for honey, man discovered the hexagonal structure of the honeycomb. How did the bees know this shape that man could not do with his knowledge?
In ancient times, day and night were divided into twelve hours. The "eleventh hour" of the Old Testament was the time between four and five in the afternoon, because the day started at six in the morning. At noon, the sun is at its highest point in the sky. The branches of the tree pointed in this direction. This meant somewhat accurate tracking of the passage of time in daylight when the sun was shining.
The four elements of antiquity are described according to the ancient geometry of a quarter circle. This was presented in a way that everyone could understand.
To be able to carry stones, they had to be small. Now it was nice to put these on the ground, in the taught triangle shape. The stones had an order and after the second row they determined the position of the remaining stones. This was a pattern thousands of years old, taught to the young for entertainment and learning.