The worst form it can have is that of a vertical plane or upright flat, and next to this the worst form is an inclined plane.
Some of these devices are, the wedge, the screw, the pulley and the inclined plane.
In Fig. 248 we treat a flight of steps as if it were an inclined plane.
It also applies to those on an inclined plane, as in Rule 8.
They made a little trench so that it might roll down the inclined plane.
This mouth is continued by an inclined plane, kept free of all rubbish.
An inclined plane by the water side, on which a ship may be built.
Those who follow it obey the same laws as a body on an inclined plane.
The edge of any cutting tool is either an inclined plane or a wedge.
Inclined Plane, Wedge, and Screw; mechanical advantage and efficiency.