Optics: : [op-tiks] - noun. A branch of physics that studies electromagnetic radiation (for example, light and infrared radiation), its interactions with matter, and instruments used to gather information due to these interactions.Optics includes the study of sight. branch of physics that studies electromagnetic radiation (for example, light and infrared radiation), its interactions with matter, and instruments used to gather information due to these interactions.
By 1924, the National Flag Conference, under the leadership of the American Legion and the Daughters of the American Revolution, changed the Pledge's words, 'my Flag,' to 'the Flag of the United States of America.'
The Pledge was originally written in 1892-AUG by Francis Bellamy (1855 - 1931). He was an American, a Baptist minister, and an active Socialist. He included some of the concepts of his first cousin, Edward Bellamy, who wrote a number of socialist utopian novels, such as Looking Backward (1888) and Equality (1897).