Window frost

A white frost is ice crystal, which is awarded because of its similarity in shape with a flower. It is a special form of hoarfrost.

Formation

Ice flowers arise on thin windows when the outside temperature drops below 0 ° C, the humidity in the space corresponding to high, the thermal insulation effect of the window is relatively small and nuclei or nuclei such as dust particles are present on the glass, can in which crystallize water.

Warmer room air flows to the disk cools. With the temperature of the air decreases and the ability to absorb moisture. The water vapor that the air can not absorb resublimated, ( freezes ) on the disk and then forms ice crystals. With the amount of moisture, the white frost grows and may cover the entire disc.

In addition to the crystalline structure of ice crystals, which thus form patterns when stringing grow, even tiny scratches on glass or car body can cause the appearance of the "plant of Ice" with.

Since almost all windows are used in multiple glazing in modern home construction and renovation of old buildings, frost flowers are native to windows now a rare phenomenon. However, they may still be observed on aircraft windows.

A further variant of Eisblumen formed on the outside of cars and other objects in the open and there is not only on the windows, etc., but also on the painted surface to watch. They arise when cooling off in the cold season, the items below freezing.

A special form of frost flowers are sea ice flowers that occur in the Arctic and Antarctic in spring and autumn.

Gallery

Vereistes window

Ice crystals on window pane

Ice crystals on a window of a plane

Sea ​​ice flowers