Clouds can be one of the most important features when taking pictures. They add so much to a photograph, especially when they are formed just right. Take a wonderful cloud formation and add a beautiful sunset, expansive landscape, or a stunning cityscape, and you’ve turned a good photo into a great one. Granted, there are a lot of other factors that go into taking a great picture with clouds in it bu
Wave cloud caused by a Kelvin–Helmholtz instability. These phenomena can occur when there is velocity shear in a single continuous fluid, or where there is a velocity difference across the interface between two fluids. An example is wind blowing over water manifesting in waves on the water surface. More generally, clouds, the ocean, Saturn's bands, Jupiter's Red Spot, and the sun's corona show this instability.