Y to Youngs

Y to Young modulous

Yankee machine. (Papermkg.) A Fourdrinier paper machine having a large single dryer with a highly polished surface. When the paper contacts this surface it assumes a glazed finish.
Yardage. (Engin.) A term referring to the amount of earth excavated ex­pressed in cubic yards.
Yardstick. A graduated, wooden, measuring scale 36 inches long. Such a scale made of metal would properly be called a 36-inch scale.
Yaw. (Aero.) A deviation from the line of flight by angular motion about the normal axis of an airplane.
Yawmeter. (Aero.) An instrument.for measuring the angle of yaw.
Y connection. (Elec.) A branching connetion applied to a three-phase circuit.
Y-connector. A I : 2 connector that allows one signal source to be split and routed to two different inputs. Also called "Y-adapter".
Year ring. (Wood wkg.) Also called ."growth ring", or "annual ring". Rings of tubes or cells by means of which the sap is conveyed through­out a tree. they are clearly visible on a cross section of a log. Each ring represents a year of growth.

Yellow. (Color) Primary color be­tween red and green in the spec­trum.
Yellow brass. (Metal.) An alloy of 70 parts copper and 30 parts zinc. It is an inferior alloy used where strength is not essential.
Yellow ocht;r. (Paint.) A colour de­rived from t~e earth mineral ocher, an ore of iron; used as a pigment in paints.
Yellow pine. (Wood) An evergreen of two principal varieties, long leaf and short leaf. The wood of the
. long-leaf pine is dense, heavy, and very strong; mostly used in the form of heavy timbers. The short­leaf pine is brittle, not nearly so strong, and is less expensive; used for studding, joists, cheap floor­ing, etc.
Yew. (Wood) A slow-growing, me­dium-size evergreen tree. The wood is close grained, hard, and flex­ible. Its colour is orange red to brown.
Yield point. (Engin.) That unit stress at which the specimen begins to stretch without increase in the load.
Yield strength. (Engin.) The load requirej to produce a permanet. stretch or elongation of a meterial.

yield value to Youngs modulus
Yield value. (Plast.) The lowest pres­sure at which a plastic will flow. Below this pressure the plasric be­haves as an elastic solid; above this pressure as a viscous liquid.
Yoke. (Arch.) The horizontal top mem­ber of a window frame. (Tel.) A setof coils used around the neck of an electronic camera or picture tube to produce the horizontal and ver­tical deflection of the electron beam.
Young's modulus. (Meek. Engin.)Same as modulus of elasticity.