Half Center

Business / Machine Shop / Half Center: A dead center that has a portion of the 60 degree cone cut away.

Half-Line

Life Style / Poetry / Half-Line: part of a line bounded by a caesura or some upper limit of syllables or stresses. MORE

Half-Nut

Business / Machine Shop / Half-Nut: A lever-operated mechanism that resembles a split nut that can be closed on the leadscrew of a lathe when threads are being cut. MORE

Half-Life

Science / Biology / Half-Life: The time required for one-half of an original unstable radioactive element to be converted to a more stable daughter element. MORE

Half-Frame Camera

Entertainment / Photography / Half-Frame Camera: Camera designed to use 35mm film in a half-frame format. MORE

Half-Duplex

Technology / Computers / Half-Duplex: Refers to the transmission of data in just one direction at a time. For example, a walkie-talkie is a half-duplex device because only one party can talk at a time. In contrast, a telephone is a full-d MORE

Half-Frame

Entertainment / Photography / Half-Frame: Negative format of 18 x 24mm. Images are recorded on a vertical axis on standard 35mm film, thus giving 72 half-frame images on film designed for 36 exposures. MORE

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