A snowflake or a snow crystal. This snow crystal is of a stellar crystal form,also called a dendritic snow crystal. This form of crystal is made in a cloud when water freezes into ice around -15C. Snowflakes show typical hexagonal symmetry (as seen here) if the crystallization occurs slowly,in a calm air and in temperatures near freezing point; they are commonly flat and may have different shapes such as six sided polygons or stars. The beautiful pattern is often very complicated with needle-like structures and tiny bridges. Since the final stage is influenced by the weather conditions in which they form,no two snowflakes are identical | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Kinsman, Ted |
Taille de l’image : | 3750 px × 2500 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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