Social psychology is the scientific study of how people's thoughts, feelings, and behaviors are influenced by the actual, imagined, or implied presence of others. In this definition, scientific refers to the empirical investigation using the scientific method.
Army - Sergeant Major of the Army (U.S.) On 16 June 1999, Army Chief of Staff Gen. Dennis J. Reimer officially unveiled and presented the Sergeant Major of the Army Flag to the residing Sgt. Maj. of the Army, Robert E. Hall. The flag, designed by the U.S. Army Institute of Heraldry, was taken from the insignia created in 1966 to distinguish the SMA rank. The flag background is divided diagonally from the upper fly to lower hoist, in scarlet and white, with scarlet uppermost.
Diver down flag being flown on a dive ship The use of the red and white flag, which was created in 1956 by Navy veteran Denzel James Dockery and popularised by Ted Nixon of US Divers, is required by law or regulation in many US states, Canada, and some other countries (e.g. Italy).