Air above a cold or cooled surface contracts and falls.
It moves up because therefore hot air rises and cold air sinks... it would be like evaporation except not because its air.
Humidity in the air condenses on the cool bottle surface.
Advection fog results when moist air moved across a cold surface. When moving across a cold surface, the air is cooled to its dew point.
What you will notice is what is called Bernoulli's Law. As air passes along between two flat surfaces, pressure increases. If the pressure beneath the top surface increases and surpasses the pressure above it, lift results. Sufficient lift will cause the top surface to rise above the lower.
In simple terms... gravity ! Gravity is holding the air close to the surface of the Earth. The further away you are from the surface - the lower the gravity - and thus the lower the air pressure.
how does air above cold surface move
When air high above the earth' surface is cooled below the dew point it is likely to form?
When air high above the earth' surface is cooled below the dew point it is likely to form?
Clouds.
Clouds.
Clouds.
Clouds.
When air high above the Earth's surface is cooled below the dew point, it is likely to form clouds. Clouds are visible mass of liquid droplets or frozen crystals made of water.
POOOOOOP
in a upward motion
Advection fog results when moist air moved across a cold surface. When moving across a cold surface, the air is cooled to its dew point.
Clouds.