Luminance Luminance Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction. It describes the amount of light that passes through, is emitted or reflected from a particular area, and falls within a given solid angle. The SI unit for luminance is candela per square metre (cd/m). A non-SI term for the same unit is the nit. The CGS unit of luminance is the stilb, which is equal to one candela per square centimetre or 10 kcd/m. Luminance is often used to characterize emission or reflection from flat, diffuse surfaces. The luminance
The Measure of a Man: A Spiritual Autobiography The Measure of a Man: A Spiritual Autobiography The Measure of a Man: A Spiritual Autobiography is an autobiographical work by Sidney Poitier. On January 26, 2007, Oprah Winfrey chose it for her book club. In this memoir, Poitier, looks back on his celebrated life and career. He explores elements of character and personal values to take his own measure as a man, as a husband and a father, and as an actor. Poitier credits his parents and his childhood on tiny Cat Island in the Bahamas for equipping him with the unflinching sense of right and wrong and of