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SNOW

Snow, an amazing natural phenomenon: my love as warm Snow

Febdian Rusydi (Rijksuniversiteit Groningen)

At this time in Europe and the northern regions of the Earth the middle of winter. One of theinterestingphenomenon of the moment winter is snow. Be unique because the ice crystals are soft and white as cotton it just comes naturally in the land of the four seasons or in places that are veryhigh asJayawijaya mountain peaks on Papuan. Why snownaturally could not present in tropical regions such as our country?

The process of the formation of snow

To answer that, we can start the process ofoccurrence of snow. Starting from water vapor that gather in Earth’s atmosphere, the water vapor coolsto the point of condensation (i.e. thetemperature at which the gas turns into liquid or solid forms), thenrotate to form clouds. At the beginning of the formation of clouds, its mass is much smaller than the mass of the air so that the clouds float in the air just like wooden beams which floats on the surface of the water. However, after the steam collectioncontinues to grow and merge into the cloud, its mass also increases, resulting in a when air was notable to hold him again. The clouds broke and thewater particlesever fallen to Earth.

Water particles that fall it was pure water (not dopedby other particles). Pure water does notfreeze in temperatures of 0 degrees Celsius, because at thetemperature of liquid phase changesto solid. To make pure water freezing temperature required is lower than 0 degrees Celsius.