Anders Sandberg wrote:
> Most of the texts of the great library were likely copies of the
Today stone arches are approximated. Usually they are fake: the
arch is made of cement with fake lines drawn in the wet facade.
Consider this, those of you who are mechanically inclined. Draw an
arch. Put in lines perpendicular to the arch that describe a number
of wedge shaped stones. Challenge: draw the lines in such a way
that each stone is in pure compression (no part of the stone may
be in bending moment) and there is no shear force at the interfaces
between the stones.
Another way to state the problem is this: shape your stones
> Illiad and Odyssey. By all accounts there were a great redundancy...
vector. Obviously, the included angle in the top stone would be larger
than the stone that whose centerline is 30 degrees from horizontal.
In fact, the included angle of each stone is different from all the rest.
spikus jonicus