Page 146 - Miracles Within the Molecule
P. 146

A snow flake is
                                                          con densed water vapor
                                                        that begins to form around
                                                       a small dust par ti cle, just a
                                                     few microns in size. This
                                                  micro scop ic  shape  is  hex ag o nal,
                                               stem ming from the struc ture of the
                                       water mol e cule. This crys tal that forms grows
               increas ing ly larg er, as small branch es begin to grow from its arms. The
               cold er the weath er becomes, the fast er these branch es grow. As the flake
               is exposed to chan ges in the weath er, cap il la ry tubes begin form ing on
               the emerg ing struc ture. As the snow spreads around and is sub ject ed to
               dif fer ent weath er con di tions this struc tur al growth con tin ues and starts
               to acquire a char ac ter is tic fit ted to every con di tion. Since every branch
               in a sin gle snow flake expe ri en ces iden ti cal growth, the branch es all
               resem ble one anoth er, even though exceed ing ly com plex struc tures
               emerge. In line with the orig i nal hex ag o nal struc ture, a sym me try based
               on the num ber six emer ges, and the crys tal acquires a three-dimen sion -
               al struc ture.  68
                    These phys i cal phe nom e na we have out lined, and the phys i cal
               laws that give rise to them, are actu al ly exceed ing ly com plex. Therefore,
               just as snow flakes acquire very dif fer ent shapes, they also acquire an
               immac u late sym me try, so fine ly cal cu lat ed that it seems to have been




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