Window frost (also called fern frost) forms when a glass pane is exposed to very cold air on the outside and moderately moist air on the inside. If the pane is not a good insulator (such as a single pane window), water vapour condenses on the glass forming patterns.
The sun peeks out from over the silhoutte of roofs at 7 am as seen through the car. Feb 15th.
The sun peeks out from over the silhoutte of roofs at 7 am as seen through the car. Feb 15th.
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