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## Perpendicular

Denoting the latest stage of English Gothic church architecture, prevalent from the late 14th to mid 16th centuries and characterized by broad arches, elaborate fan vaulting, and large ...

## perpendicular Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

... 1. At right angles to another object, for example, a perpendicular joint is at 90° to the horizontal mortar bed in a wall. 2. Something that stands vertical to the ground, is at 90° to the...

## perpendicular style Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

... style Gothic architecture that is exaggerated by vertical straight and slender aspects such as windows and...

## perpendicular-axes theorem Quick reference

### A Dictionary of Mechanical Engineering (2 ed.)

Reference type:
Subject Reference
Current Version:
2019

...perpendicular-axes theorem 1. If I x and I y are the mass moments of inertia of a rigid plane lamina about any pair of orthogonal axes in its plane, then the mass moment of inertia I z about the z -axis (the polar moment of inertia ) is given by I z = I x + I y . 2. If I x and I y are the second moments of area of a rigid plane lamina about any pair of orthogonal axes in its plane, then the second moment of area J about the z -axis (the polar second moment of area ) is given by J = I x + I y . See also parallel-axes theorem...

## perpendicular-axes theorem Quick reference

### A Dictionary of Mechanical Engineering

Reference type:
Subject Reference
Current Version:
2013

...-axes theorem 1. If I x and I y are the mass moments of inertia of a rigid plane lamina about any pair of orthogonal axes in its plane, then the mass moment of inertia I z about the z -axis (the polar moment of inertia ) is given by I z = I x + I y . 2. If I x and I y are the second moments of area of a rigid plane lamina about any pair of orthogonal axes in its plane, then the second moment of area J about the z -axis (the polar second moment of area ) is given by J = I x + I y . See also parallel-axes theorem...

## bi-directional Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...Arranged in two directions, normally perpendicular to each...

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...joint ( cross-joint ) A vertical joint also known as a perpendicular joint (perpendicular end) in brickwork and...

## secondary reinforcement Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...reinforcement Reinforcement perpendicular to the main reinforcement, often used to prevent...

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...A carpenter's tool used for shaping wood. It has an axe-like head, long handle, and a thin blade perpendicular to the...

## S-wave Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

... ( secondary wave , shear wave ) A type of seismic wave that travels in a perpendicular direction to the direction the wave propagates...

## end grain Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...grain The exposed grain on a piece of timber that has been cut perpendicular to the length of the...

## bridging Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...Timber or metal members that are placed perpendicular or diagonally to the bridging joists to brace the joists and spread the loads from...

## Love wave Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...wave A surface seismic wave that travels in a horizontal direction, perpendicular to the direction of...

## offset Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...A horizontal distance measured perpendicular to the survey line to obtain the position of a specific point or...

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

## polarization Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...The direction of oscillation waves, e.g. light waves oscillate perpendicular to the path they...

## anisotropic Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...Having different properties in different directions. Timber is anisotropic because it is stronger loaded in the direction of the grain rather than perpendicular to the...

## Cartesian coordinates Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013
Subject:
Science and technology, Engineering and Technology
Length:
40 words
Illustration(s):
1

...coordinates A reference system used to define a point on a plane, in relation to an origin and two perpendicular axes (the x-axis and y-axis). An additional axis (the z-axis) can be introduced to define a point in...

## cross-machine direction Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...direction ( x-machine direction ) The direction perpendicular to the machine direction that determines the width of something, for example, a geotextile. Typically, this is determined by the width of the bed of the...

## drunken saw Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...saw ( wobble saw ) A circular saw where the saw blades contain slanting flanges resulting in the blade not being set perpendicular to the drive shaft. Used for cutting a groove wider than the thickness of the saw...

## quarter-sawn Quick reference

### A Dictionary of Construction, Surveying and Civil Engineering

Reference type:
Subject Reference
Current Version:
2013

...The cut pattern of timber boards from a felled tree trunk (log). The log is first cut into quarters along its axis , after which a series of cuts are made perpendicular to the tree's growth ring . This produces a reasonably consistent grain...

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