Macrophotograph of a snow crystal showing characteristic hexagonal symmetry. Each crystal is made up from water molecules,arranged with 2 hydrogen atoms making an angle of 105 degrees with 1 oxygen atom. The fixed shape of the water molecule means they can assume a stable crystal arrangement only when arranged as a 6-branched figure. Despite essential hexagonal similarity no two snowflakes are identical because their growth from cloud,through sky,to the ground is influenced by temperature,humidity,air currents etc. & these conditions are never identical for two snowflakes. Magnification: x5 (35mm size) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Nuridsany, Claude / Perennou, Maria |
Taille de l’image : | 4843 px × 3686 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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