March 14: Date dedicated to the number π (March = 3/14)

One of the best known achievements of Archimedes was the measurement of the number π. Despite the fact that the means of the time were insufficient, Archimedes managed to give a very accurate approximation of this number using the technique of exhaustion. How did he do that? He describes the process in the work of "Measurement Cycle". First draw a circle and then two regular hexagons: one larger outside the circle and one smaller inside it. Gradually doubling the number of sides in both regular polygons (making them 12, 24, 48 and finally 96 sides) created 2 polygons with 96 sides each, one inside and one outside the circle, the lengths of which were very simple to calculate as they have straight sides. Therefore it was obvious that the length of the circle was somewhere between the lengths of the two polygons! Then measure the length of the diameter of the circle (also a straight line) and divide it by the approximate length of the circle, ie calculate how many times it fits in it. With this seemingly simple, but in fact genius method he was able to determine the value of π which according to him was between 3.1429 and 3.1408, an extremely accurate approach if we take into account that an accurate approach today is 3.1416 !

A well-known cosmetics company gave its cologne the name P, stating in the respective advertisement that this cologne enhances the attractiveness of intelligent and visionary men.

And to make us laugh a little, I also quote the well-known sketch of Arkas