🚀 go-pugleaf

In article <1ass0lINNhc2@agate.berkeley.edu> chrisman@wheatena.berkeley.edu (chrisman) writes:
stuff deleted....

>Indeed, a stretched string won't be completely straight, because
>of the influence of gravity (gusts of wind, Brownian motion, ...)
>no matter what the tension on the string.
>
>Besides, if we want a machine that uses the "definition" to get
>a straight line, how about a laser?  For the physicist (not the
>mathematician), I suppose that the path followed by a beam o
>light is the closest thing to a definition of a straight line.
>
It still bends under gravity, unless you assume the Earth is a perfect
sphere and point it in a direction normal to the surface. Even then,
there is the Sun's gravity...........
--
Bob Silverman
These are my opinions and not MITRE's.
Mitre Corporation, Bedford, MA 01730
"You can lead a horse's ass to knowledge, but you can't make him think"