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Middle gray. 50% CIELAB lightness. ( Y = 18.4%) In photography, painting, and other visual arts, middle gray or middle grey is a tone that is perceptually about halfway between black and white on a lightness scale; [1] in photography and printing, it is typically defined as 18% reflectance in visible light. [2] [3]
The term "Freshman 15" is an expression commonly used in the United States and Canada to refer to weight gain during a student's first year in college. Although the 15 refers to a 15 lb (6.8 kg) weight gain, the expression can apply more generally.
A zero-coupon bond (also discount bond or deep discount bond) is a bond in which the face value is repaid at the time of maturity. Unlike regular bonds, it does not make periodic interest payments or have so-called coupons, hence the term zero-coupon bond.
In finance, a coupon is the interest payment received by a bondholder from the date of issuance until the date of maturity of a bond. Coupons are normally described in terms of the "coupon rate", which is calculated by adding the sum of coupons paid per year and dividing it by the bond's face value. For example, if a bond has a face value of ...