The five cerulean five-pointed stars arranged in an X pattern centered in the white band represent the five nations of the former Federal Republic of Central America (El Salvador, Costa Rica, Nicaragua, Honduras, and Guatemala) and the hope that the nations may form a union again.
Wind Deflectors let you enjoy cool, fresh air without all the noise and swirling winds, so you don't have to be so quick to crank up the air conditioner. Plus, deflectors improve your vehicle's open-window aerodynamics, cutting down on drag for a more efficient ride.
Standing waves in wind instruments. Wind instruments produce their sound from the standing waves that resonate in the column of air inside a narrow pipe. In many wind instruments, the pipe is closed at one end and open at the other. The standing waves must have a node at the closed end and an antinode at the open end.