Entertainment / Photography / T Stops: More accurate measurement of light entering a lens than 'f' numbers. Whereas 'f' numbers represent the ratio between measured diameter and focal length, 't' stops are based on actual light transmission at different diameters.
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Entertainment / Literature / Portmanteau Word: The French term for a linguistic blending. MORE
Business / Construction / Portland Cement: Cement made by heating clay and crushed limestone into a brick and then grinding to a pulverized powder state. MORE
Life Style / Travel / Porthole: Circular 'window' in the side of the ship's hull or superstructure. Most cruise cabins today feature picture windows, full-length glass windows, french balconies, or balconies. MORE
Business / Finance / Portfolio Variance: Weighted sum of the covariance and variances of the assets in a portfolio. MORE
Entertainment / Literature / Portrait En Creux: A rhetorical or literary device in which a writer mentions an absence to evoke the counterpart presence. This is the verbal equivalent of 'negative space' in sculpture or painting. MORE
Entertainment / Photography / Portrait Lens: Lenses produced specifically for portraiture. They usually have a long focal length and produce a slightly diffused image. MORE