> >This Ma Bell puzzle reminds me of the one about the buckling bridge... >If a bridge is made of a single piece of material exactly one mile long >and anchored firmily at both ends, then it expands exacly one foot such >that the middle of the bridge buckles up (your choice of models and >assumptions for this one), how far above the original roadway will the >center of the bridge be after the buckle? >
Try the same problem but have it buckle by only an inch. This is even more amazing, I think. When we gave this problem to a biology teacher here (with the track expanding by a foot) his response was "Are you using the same Pythagorean theorem I was taught in sshool?" The answers do not seem intuitive.
-- Doug Kuhlmann (508)-749-4242 Phillips Academy firstname.lastname@example.org Andover, MA 01810