Telescope Lens-Making in the 17th Century: The Legacy of Vangelista Torricelli
In the early days of instrumental optics, the know-how of lens making was shrouded in secrecy. A remarkable exception can be found in a letter from 1643, in which the Italian lens-maker Vangelista Torricelli gives his correspondent directions on optical shop practices.
Access to the full text of this article is restricted. In order to view this article please log in.