Pi approximation day 2026: Pi square is nearly g and other coincidences

This will be the last article about (\pi) for this year, but I could not miss today, given that (\pi \approx 22/7) and in most countries of the world today’s date is 22/7, the pi approximation day.

In the spirit of approximations, and to continuethe other article let’s discuss about the (\pi^2 \approx g) were (g) is the acceleration due to gravity at sea level on Earth.Read more...