Lo specchio vstorio, overo, Trattato delle settioni coniche, et alcvni loro mirabili effetti intorno al lume, caldo, freddo, suono, e moto ancora ... (1632)
Cavalieri, Bonaventura, 1598-1647 · In Bologna : Presso Clemente Ferroni · leaf 10
D. vY. CI Duri, ‘Diver & Hobligatits Sertitore:
Conic sections · Burning-mirrors
Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.
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