Dog Dry Skin at a glance. 1Dry skin is itchy and uncomfortable, and dogs will scratch, lick, and bite to relieve their symptoms. 2Dry dog skin may appear red, flaky, scaly, or otherwise irritated. 3There are many causes of dry dog skin, and the treatment will depend on the cause.
Definition of Brownian motion. : a random movement of microscopic particles suspended in liquids or gases resulting from the impact of molecules of the surrounding medium âcalled also Brownian movement.
When an air particle bombards a smoke particles, the smoke particle moves to the same direction as the air particle that hit it. When another air particle hits the smoke particle, it changes its direction to that of the second air particle, and so on. This is called Brownian motion.