Toys designed from books and legends, and powered by sustainable energy such as wind, heat, gravity and feelings.
Can you make a square so that not only the rows,columns and diagonals add to 34,but also the 4 corner numbers,the 4 central numbersand each of the 2×2 corner squares add to 34? who was Albrecht Dürer A Magic square is a grid where the sum of the numbers in each line, each column and … Read more
According to Chinese legend ,the first magic square appeared to the emperor Yu while he was walking beside the Yellow River more than 4000 years ago , on the shell of a turtle. In the square the sum of the numbers from 1 to 9 , in each row, column and diagonal add up to … Read more