Heavy snowfall in the capital

[custom_adv]


Snow crystals form when tiny supercooled cloud droplets (about 10 μm in diameter) freeze. These droplets are able to remain liquid at temperatures lower than −18 °C (0 °F), because to freeze, a few molecules in the droplet need to get together by chance to form an arrangement similar to that in an ice lattice. The droplet freezes around this “nucleus”.

Check Also

Photos from behind the scenes of the series “mahaleh behdasht”

ranian television of the 1980s and 1990s underwent a unique transformation in the field of …