Index Entry
Machines:
“The three perpendicular bisectors of an equilateral triangle cross each other at the triangle’s center of gravity, dividing the total triangle into six right triangles, of which three are positive and three are negative. So there are six fundamentals of the triangle which makes possible dynamic symmetry. . . Each corner is balanced by its positive and negative-- like a street corner. This is called dynamic balance. Literally all machinery is dynamically balanced in this manner.”
