"...there is a system of pulleys represented, in which the weight is sixteen times the power." -Comstock 1850

Compound Pulley

"...there is a system of pulleys represented, in which the weight is sixteen times the power." -Comstock…

Illustration of an irregular convex polygon with 16 sides that has symmetry. It could be used to show rotation of a square.

Irregular Convex Polygon

Illustration of an irregular convex polygon with 16 sides that has symmetry. It could be used to show…

16 pointed star

Star

16 pointed star