Dear Tony, dear shadows watchers,
All the messages about shadows sharpeners were sent around the 6 may 1999 Sorry, I don't know how to copy them and send them, with Netscape Navigator. Cheers Alain MORY 48°N 7°E Tony Moss a écrit: > > Fellow Shadow Watchers, > One presentation at the recent BSS Conference > referred to a series of planned dials using sunrays passing through > circular holes onto walls/ceilings. This brought to mind recent postings > which mentioned placing a spherical 'bead' in the aperture so that the > sunlight was passing through an annulus to yield a light spot with a > sharp central shadow - if I remember it correctly. > > 1. Does anyone have these postings conveniently saved or can recall > their approximate date? > > 2. I also seem to remember noting that all postings to this mailing list > are archived somewhere so given the date and archive address my > correspondent could look them up for himself. > > Thanks in anticipation > > Tony Moss.
