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"The word corbie or corby, though obsolete in English, except as a heraldic term, has retained its place in the Scottish dialect, and in architecture to signify the succession of steps with which the gables of old houses are everywhere ornamented in Scotland. The fashion, like most of the other peculiarities of Scottish architecture, was no doubt borrowed, as was the term, from France." — Chambers, 1881

Corbie-Steps

"The word corbie or corby, though obsolete in English, except as a heraldic term, has retained its place…

"The induction coil is...often called the Rhumkorff coil. Receiving a large current of small electromotive force, it delievers a small current at a high pressure, sometimes hundreds of thousands of volts, i.e., it is a 'step up' transformer." -Avery 1895

Induction Coil

"The induction coil is...often called the Rhumkorff coil. Receiving a large current of small electromotive…

"The induction coil is...often called the Rhumkorff coil. Receiving a large current of small electromotive force, it delievers a small current at a high pressure, sometimes hundreds of thousands of volts, i.e., it is a 'step up' transformer." -Avery 1895

Induction Coil

"The induction coil is...often called the Rhumkorff coil. Receiving a large current of small electromotive…

For safety, a rigid ladder should be leaned at an angle of about fifteen degrees to the vertical. In other words, the distance from the foot of the ladder to the wall should be about one quarter of the height of the top of the ladder. At steeper angles, the ladder is at risk of toppling backwards when the climber leans away from it

Four Wheeled Cart Mount for Ariel Ladder

For safety, a rigid ladder should be leaned at an angle of about fifteen degrees to the vertical. In…

A ladder is a vertical or inclined set of rungs or steps. There are two types: rigid ladders that can be leaned against a vertical surface such as a wall, and rope ladders that are hung from the top.

Six Step Ladder

A ladder is a vertical or inclined set of rungs or steps. There are two types: rigid ladders that can…

Illustration of stairs; 3-dimensional view of 4 steps. The staircase can be created by combining/stacking various sizes of rectangular solids.

Isometric of Stairs

Illustration of stairs; 3-dimensional view of 4 steps. The staircase can be created by combining/stacking…

A step block supported by an arm clamp also holds a work piece which has been machined. The step block has a generally right angled triangular configuration and has a saw-teeth portion on the inclined side

Stepping Block

A step block supported by an arm clamp also holds a work piece which has been machined. The step block…