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.
There are many types of fuel cells, but they all consist of an anode, a cathode, and an electrolyte that allow positively charged hydrogen ions (or protons) to move between the two sides of the fuel cell. Solid Oxide Fuel Cell (SOFC): A type of fuel cell in which the electrolyte is a solid, nonporous metal oxide, typically zirconium oxide (ZrO 2) treated with Y 2 O 3, and O 2â is transported from the cathode to the anode.