Grids blocs 8.5mm

The golden proportion is a ratio which result is called mathematically Phi (1.618)
or phi (0.618). It is proven that the universe uses this proportion for its
own construction, from the genetic sequences up to the level of galaxies,
passing by construction of flowers, insects, a hand, a face or the whole
body.
As we are able to divide a line by its middle or draw a perpendicular, we all
recognize the Golden Proportion as a constant for harmony and balance.