Hexagonal snowflake. Snowflakes are ice crystals that form in air that has a temperature near the freezing point of water. If the air is calm,then a symmetrical,hexagonal snowflake can form. When the growth is slow,the hexagonal,plate shape can be preserved. Usually,branching instabilities and changing temperatures cause complex and beautiful patterns to form as a snowflake increases in size. The hexagonal symmetry of a snowflake is due to the orientation of the water molecules within the lattice of an ice crystal | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Libbrecht, Kenneth |
Taille de l’image : | 2987 px × 2928 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |