Every day it is freezing in Sounkyo
Today’s temperature was -15°c at Sounkyo visiter center.
Weather forecast says that it will be -20°c, become warm in weekend.
(Beware of snow falling from roof.)
When in the freezing morning, we can see window frost
When water vapor in the air freezes, Window frost is made.
It is one of ice crystal. It has many pattern like a needle, like a feather, like a branch, like a fan.
Window frost needs under -6~10°c.
Water vapor around window is chilled by out side air of window very quickly, and becomes ice. Ice joins another ice crystals, it becomes bigger.
At last window frost becomes beautiful geometric pattern.
When we find window frost , We think “This morning is really cold.”.
If window frost is very big and wide , the temperature must be under -15°c
Today’s temperature was -15°c at Sounkyo visiter center.
Weather forecast says that it will be -20°c, become warm in weekend.
(Beware of snow falling from roof.)
When in the freezing morning, we can see window frost
When water vapor in the air freezes, Window frost is made.
It is one of ice crystal. It has many pattern like a needle, like a feather, like a branch, like a fan.
Window frost needs under -6~10°c.
Water vapor around window is chilled by out side air of window very quickly, and becomes ice. Ice joins another ice crystals, it becomes bigger.
At last window frost becomes beautiful geometric pattern.
When we find window frost , We think “This morning is really cold.”.
If window frost is very big and wide , the temperature must be under -15°c
