Series of mini-lectures on the sundial by gnomonist Giovanni Paltrinieri

Series of mini-lectures on the sundial by gnomonist Giovanni Paltrinieri starting May 18 through Sept. 21 at the Basilica of San Petronio.

Gnomonist Giovanni Paltrinieri talks about the origins, functioning and cultural importance of the sundial in the Basilica of San Petronio, the longest in the world. A fascinating exposition on the technical details and history of this ancient time-measuring instrument will conclude with the exciting moment when the sun perfectly intersects the sundial line. A unique and fascinating natural spectacle that will allow people to contemplate the perfection of nature and human ingenuity. The duration of the lecture is one and a half hours and there are 25 seats available.