Hoarfrost. Crystals of hoarfrost frozen on straw. Hoarfrost forms when condensation falls below zero degrees Celsius. If the air is still,water droplets crystallise around "condensation nuclei" such as dust particles on surfaces. For hoarfrost crystals to form,the surface temperature must also be below freezing point | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Edmaier, Bernhard |
Bildgröße: | 3812 px × 3817 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |