Saturday, January 18, 2014

18th Jan. Radiative Cooling 放射冷却だぞ

Radiative Cooling
1月18日 放射冷却だぞ

It was minus 9 degrees this morning, but it’s normal.

When it’s fine day, the temperature falls below zero maybe because the warmed air goes up to the sky.

I enjoyed skiing as usual.

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