## The real value of Pi?

Here you can find our book The reproducible reality Math is the key to understand and describe the universe. The question is:  can we consider the opposite situation always true? I mean,  is it  possible to reproduce in the real world  all the ideal abstractions that are possible in the math world?

## Our Earth Pond and the tent of the sun.

In a previous article” SketchUp and flat Earth lesson 1 ” you were given indications about how to model a flat Earth pattern with Google Sketchup. You will discover today how to create a component you can easily duplicate.

## 111, 333, 666, and many other curious digits. What are Demlo numbers?

The Earth map used in the UN flag: 33 sectors A grid, probably representing parallels and meridians, divides the Earth in 33 sectors. Another special number is 11, 33 being a multiple of it. You probably wonder what  it means and what relation have these numbers with the Earth. 33 appears immediately as a particular number, being a palindrome. Moreover 3×3=9;  33×3=99… another palindromic digit I like is the number 12321. If you sum all digits, you’ll obtain[…]