In the n-body problem, certain functions of variable elements of an ellipse with a fixed focus along which one of the bodies travels; these functions have rates of change satisfying simple equations.

Related Terms

PONTOON BRIDGE

A fixed floating bridge supported by pontoons.

PLATE GIRDER BRIDGE

A fixed bridge consisting, in its simplest form, of two flange plates welded to a web plate in the overall shape of an I.

PLANET CARRIER

A fixed member in a planetary gear train that contains the shaft upon which the planet pinion rotates.

PIVOT ANCHOR

[DESENG] An anchor that permits a pipe to swivel around a fixed point.

PILLAR CRANE

A crane whose mechanism can be rotated about a fixed pillar.

OVERHEAD

Pertaining to fluid (gas or liquid) effluent from the top of a process vessel, such as a distillation column. See fixed cost.

OPEN-END WRENCH

A wrench consisting of fixed jaws at one or both ends of a handle.

MOVING-COIL GALVANOMETER

Any galvanometer, such as the d'Arsonval galvanometer, in which the current to be measured is sent through a coil suspended or pivoted in a fixed magnetic field, and the current is determined by measuring the resulting motion of the coil.

MONKEY WRENCH

A wrench having one jaw fixed and the other adjustable, both of which are perpendicular to a straight handle.

MASTER GAGE

A locating device with fixed hole locations or part positions; locates in three dimensions and generally occupies the same space as the part it represents.

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