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It certainly helps. But panels can receive some energy through clouds, windows and from reflectors.
Yes, sound waves can travel through clouds.
It might shake only when passing through turbulence. Clouds may or may not be turbulent. Pilots learn which are and which are not turbulent. Clouds that occur in even layers are very smooth. Thunderheads and lenticulars are often violent and are usually best avoided.
The only difference between dark clouds and light clouds are they're thickness. A dark cloud is thikcer than a light cloud so it doesn't let as much light through. SO to answer your question, clouds are black in the rainy season because they are "holding" more water than they hold during the dry season
It's just the way clouds release excess water.
it does not heat the clouds
The only clouds on earth that are like this are cumulonimbus.
No. When clouds are gray, that means the sunlight can barely shine through them. Usually cirrus clouds are thin, white, and wispy. The clouds you are seeing are probably stratus or altocumulus clouds.
Nimbo clouds produce rain. Nimbostratus clouds are full of water, so sunlight cannot get through it, that is why the sky is dark when there are storm clouds above.
cumulonimbus clouds block out sunlight!
When there are dark clouds in the sky, it is a sign that a rain shower is eminent. Clouds full of precipitation are much more dense than other clouds and as a result less sunlight can shine through causing the clouds to appear black.
Maybe you are referring to crepuscular rays? http://en.wikipedia.org/wiki/Crepuscular_rays
Clouds are a collection of super-cooled water and ice crystals. As light shines towards clouds, a percentage is reflected by the water/ice. Yet some light and UV radiation still slips through.
Sunlight experiences some degree of scattering (technically, Rayleigh Scattering) as it passes through the atmosphere, which causes the sky to appear blue and the sunlight to appear yellow. Some of the sunlight encounters clouds, while some reaches the ground.
Particles in the clouds reflect light in all directions
grey clouds
Reflected sunlight, which we see as white.