[sionnsar]

you wouldn't be ABLE to generate a precise system on base ten, because you'd have to estimate where to put the markings on the ruler!

Gee. We figured out the answer to that one in junior high. ("Middle school" to you youngsters.)

Simple geometry, if you have decent teachers.

(Not that we've had many decent teachers for a long time -- a good many are nothing but union workers.)

[Old Professer]

Squaring the circle?

[Old Professer]

I've devised a way of getting two equal parts of a line and one part that is equal to X-2pi where X=9 using only a compass and straightedge.

If you average the angle of intersection the average is practically the same as trisecting the line.