The Way Clouds Stick To This Airplane Wing As it Lands is a Sight To Behold

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I recently came across this pretty cool video which shows how water vapor (clouds) stick to wings on airplanes as they come into land. Flugsnug, the guy who uploaded the video, gives a more scientific explanation of what's going on, and it's actually pretty interesting. 

These are a by-product of the lift forces which hold aircraft up in the sky. Lift comes about because the air pressure is low above the wing, and a drop in air pressure (and temperature) tends to cause invisible water vapor (gas) to condense into the visible water droplets (liquid) we see as clouds.