nigelswift wrote:
But why not comply with the thread title? ;)
Of course, a natural cleft could still be utilised by deliberately placing a marker where it casts a shaft of light.
I would have had to remain to silent to do that .
What I didn't say was where was the marker showing the observer where to stand to see the the chink and did they use "elephant" in the 600 required 1 elephants -600 elephants after noon . All the while wishing they really lived in Greenwich ,if only at the equinox .