Roger Joseph Boscovich was a physicist, astronomer, mathematician, philosopher, diplomat, poet, theologian, Jesuit priest, and a polymath from the Republic of Ragusa. He studied and lived in Italy and France where he also published many of his works.
Portrait by Robert Edge Pine, London, 1760.
French translation of Bošković's De solis ac lunae defectibus.
The first page of figures from Theoria Philosophiæ Naturalis from 1763. Figure 1 is the force curve which received so much attention from later natural philosophers such as Joseph Priestley, Humphry Davy, and Michael Faraday. The ordinate is force, with positive values being repulsive, and the abscissa is radial distance. Newton's gravitational attractive force is clearly seen at the far right of figure 1.
Opening page "Theoria philosophiae naturalis"
Ravno, Bosnia and Herzegovina
Ravno is a village and municipality located in Herzegovina-Neretva Canton of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina. Ravno was a separate municipality until 1963, when it became a part of the Trebinje municipality. In 1994, the border changed and Ravno became a separate municipality again. This time however, part of the frontier lands of Trebinje municipality were added as part of Ravno. When Ravno inherited part of the former Trebinje municipality it had an area of 447 km2 (173 sq mi). These added borderlands went under the title Travunian Marches and were mostly inhabited by Serbs. The settlement of Ivanica has an unobstructed view of the Adriatic Sea.
Ravno
