Dear friends, some months ago I had announced to Sundial List the pubblication on "Astronomia", organ of the Unione Astrofili Italiani, of an article on the construction of sundials using the diffraction produced on the surface of a CD from the rays of the solar light. The article has not been yet published and now I hope the publication happens in the number 5 (September-October). If the article will delay a lot to be published I undertake to send a copy to of it in English to whom will ask me. The article is "heavy", around 700 Kb, because of the drawings. Regards. Mario Catamo.
Mario Catamo Via Eutropio, 28 00136 - Roma Tel. 0635452161
