At 07:28 18-06-96 -0700, you wrote:
Now for a math question. In analytical geometry the equation of an
ellipse is: (with the origin at the center and semi-axes a and b)
(X**2/a**2) + (y**2/b**2) = 1 (**2 means squared)
the equation of a hyperbola is:
(X**2/a**2) - (y**2/b**2) = 1
Mr. Sacchi, coach of italian football team, is looking for a family
out of Italy, to be able to shelter him in case of failure in the game
of this evening against Germany.
Nothing related to sundials but friends in need are friends indeed.
thanks
ugo
I will be visiting my son in Koln the first two weeks in July. We are
planning trips to Amsterdam and Paris.
Are there some good sundial sites I could visit? Are there locations
where I could find English language books or a collection of the Journal
of the British Sundial Society?
I am
At 07.28 18/06/96 -0700, you wrote:
Are they numbered from sunrise, with sunrise=0, one hour later as 1
two hours since sunrise as 2 etc?
The Babilonian hours start their count from the sunrise, and end it at the
next sunrise, so you can number the sunrise line (orizontal) with 0 or 24 as
you
