A Snowflake with a stellar (or dendritic) crystal form. Snowflakes are formed in clouds when water freezes at negative fifteen degrees Celsius. When crystallization occurs slowly,in calm air and in temperatures near the freezing point,snowflakes will exhibit hexagonal symmetry | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Kinsman, Ted |
Taille de l’image : | 4464 px × 3744 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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