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Don Mottershead | profile | all galleries >> Mini-galleries >> Simple Machines tree view | thumbnails | slideshow

Simple Machines


The Six Simple Machines

During the Renaissance six simple machines were identified.
Complex machines were thought of as assemblies of simple machines.
I remember being taught this classification in school.

There is an interesting Wikipedia article about these simple machines.
It states that a 19th century engineer, Franz Reuleaux, realized
that the six machines can be reduced to two.

From Wikipedia:

"He realized that a lever, pulley, and wheel and axle are
in essence the same device: a body rotating about a hinge.
Similarly, an inclined plane, wedge, and screw are a block
sliding on a flat surface.

This realization shows that it is the joints, or the connections
that provide movement, that are the primary elements of a machine.
Starting with four types of joints, the revolute joint, sliding joint,
cam joint and gear joint, and related connections such as
cables and belts, it is possible to understand a machine
as an assembly of solid parts that connect these joints."

However the six simple machines of the Renaissance are
more photogenic, so that's what this gallery is about.
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