Snowflake

Numéro d’image : 11737248
Snowflake
Snowflake. This is an ice crystal that forms in air that has a temperature near the freezing point of water. If the air is calm,then a symmetrical,hexagonal snowflake can form. The two main growth patterns observed are faceting and branching. When growth is slow,the straight edges and hexagonal shapes of faceting create a plate snowflake. As a snowflake grows,instabilities cause branching and the star-shaped patterns of a dendritic snowflake. Snowflakes can display both types of growth. This one was mostly formed by plate growth. The type of growth also depends on temperature,which changes in a different way for each snowflake,causing the wide variation in snowflake patterns
Licence : Droits gérés
Crédit: Science Photo Library / Libbrecht, Kenneth
Taille de l’image : 3425 px × 3110 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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