Angle between a ray of light reflected from a mirror and the normal (perpendicular) to that mirror. The law of reflection states that the angle of reflection is equal to the angle of incidence.
Green expresses hope. White symbolizes peace. It is said that the saltire may have been based on the former flag of Belgian airline, Sabena. Red represents the blood shed in the struggle for independence. Effective date: 27 September 1982.