upstroke twisting

Игры ⚽ Поможем решить контрольную работу

Bicycle pedal — A bicycle pedal is the part of a bicycle that the rider pushes with their foot to propel the bicycle. It provides the connection between the cyclist s foot or shoe and the crank allowing the leg to turn the bottom bracket spindle and propel the… … Wikipedia
Aviation history — deals with the development of mechanical flight, from the earliest attempts in kite powered and gliding flight, to powered heavier than air flight, and beyond. Humanity s desire to fly possibly first found expression in China, where people flying … Wikipedia
Flight feather — Flight feathers are the long, stiff, asymmetrically shaped, but symmetrically paired feathers on the wings or tail of a bird; those on the wings are called remiges (singular remex) while those on the tail are called rectrices (singular rectrix).… … Wikipedia

Словари и энциклопедии на Академике