Dear Aimo,
Ha! Yes I like your metric version...
1. Take your height above the ground in
meters and multiply by ten
2. Add a half
3. Take the square-root
4. The result is the distance to the
refraction rised horizon
It is spoilt slightly by the instruction
to "multiply b
It is interesting to extend Fritz's calculations to t=120 sec when A=0.5 deg
and H=804 ft. Assuming that the diameter of the sun is 0.5 deg, this
indicates the extent of the sun's penumbra so that any portion of the
building above 804 ft in the original problem would be fully illuminated as
the gre
