With participation level at nearly a quarter of the population (22 percent), bowling rolled by such popular sports and activities as basketball (15 percent), golf (13 percent), aerobics (11.9 percent), baseball (13 percent) and yoga (9 percent) to secure the number one ranking.
Definition of FUEL CELL. : a device that continuously changes the chemical energy of a fuel (as hydrogen) and an oxidant directly into electrical energy.
are combined in series to form a stack. (The term âfuel cellâ is often used to refer to the. entire stack, as well as to the individual cell.) Depending on the application, a fuel cell. stack may contain only a few or as many as hundreds of individual cells layered together.