Clouds are just water vapor, so why do they move?

Clouds are just water vapor, so why do they move?

•Clouds are not water vapor. Water vapor is the gas state of H₂O and is invisible.

•The air around you on a humid summer day is chock full of water vapor, but you don't see any of it.

•On the other hand, there is very little water vapor in the air during the cold of winter, yet you can easily make clouds with your breath.

•Clouds are collections of liquid water droplets or ice that are small enough to float.

•When the water vapor in the air gets cold enough, it condenses back into liquid in the forms of droplets.

•But the condensation is not automatic. It takes a bit of matter – a condensation nucleus – in order to jump start the process. Dust, salt, and ice in the air do the trick by providing a surface for the water to condense on to.

•Clouds are white because the water droplets making the cloud are the right size to scatter light resonantly according to Mie scattering.

•Mie scattering does not depend on wavelength, so all colors get reflects.

•Humans experience a mix of all colors as white.

•When the water droplets of the cloud get too big, their weight overcomes the cloud's buoyancy and the drops begin falling as rain.

•Drops that are big enough to fall as rain are also big enough to scatter light geometrically and not according to Mie scattering.

•We see such drops as clear. Returning back the original question, clouds can move because wind can blow water droplets around.

Comments

Why do the Indian telecom operators offer their services with 28 days validity, not 30 days?😡😡

Here telecom operator are very clever, b ecause telecom operators want to earn money of 13 months instead of 12 months. Let do the calculation and find out why telecom operators are offering 28 days validity. Each month they get 2 days more, therefore in a year they get additional 24 days. There are 7 month which has 31 days so they get additional 7 days.Now in case of February ,it has only 28 days not 30. So the total number of days they get are=24+7-2=29 days. So if you recharge 12 times then more 29 days are left in a year.🤔🤔 Means for another 29 days you have to recharge from that telecom operator.😫😫 So you have to recharge 13 times in a year instead of 12 times in a year. So telecom operators provide 28 days validity only. First one telecom operator started and then another telecom operators also understood this concept and they also applied 28 days validity both in data packs and voice packs.😱😱😱

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