Wind turbines, like aircraft propeller blades, turn in the moving air and power an electric generator that supplies an electric current. Simply stated, a wind turbine is the opposite of a fan. Instead of using electricity to make wind, like a fan, wind turbines use wind to make electricity.
The sternum or breastbone is a long flat bone shaped like a necktie located in the center of the chest.It connects to the ribs via cartilage, forming the front of the rib cage, and thus helps to protect the heart, lungs, heart and major blood vessels from injury.he sternum is a long, flat bone, forming the middle portion of the front of the chest. The top of the sternum supports the clavicles (collarbones) and its edges join with the cartilages of the first seven pairs of ribs.
In pectus excavatum, the sternum and costal cartilages are deformed, resulting in a horizontal narrowing of the chest, primarily on the posterior side. The sternum, or chest bone, is a long flat bone located in the center of the thorax, and the costal cartilages are the cartilages that connect the chest bone with the ends of the ribs. In appearance, the middle of the chest appear to be flat or concave, rather than slightly convex. Brachycephalic (short-nose) breed dogs are predisposed to this condition and in most cases are born with (congenital) this disability.