{ "viewingDirection": "left-to-right", "metadata": [ { "label": "Uniform Title", "value": "La pratica della perspettiva" }, { "label": "Origin Place", "value": "Venice" }, { "label": "Physical Location", "value": "Cambridge University Library" }, { "label": "Extent", "value": "Leaf height: 310 mm, width: 310 mm." }, { "label": "Funding", "value": "" }, { "label": "Abstract", "value": "
Daniello Barbaro (1514-1570) belonged to a Venetian patrician family, and was educated at the University of Padua. He is well-known for his collaboration with Andrea Palladio (1508-80) on the Italian translation and commentary on Vitruvius' work on architecture. Barbaro wrote on philosophical and religious topics, and had a keen interest in practical mathematics. He left his library and some astronomical instruments he had made to his brother. In the La pratica della perspettiva<\/i> (1569), Barbaro discusses, among other things, the camera obscura<\/i>. In this figure showing the construction of a latitude plate for use in an astrolabe, the horizon and azimuth lines are drawn, together with lines for the equator, tropics and ecliptic, which on the instrument itself would appear on the rete. This demonstration comes from Barbaro's manual on perspective, which illustrates the wide variety of practical applications of geometry, from painting to instrument-making.<\/p>" }, { "label": "Date of Creation", "value": "1569" }, { "label": "Title", "value": "Construction of a latitude plate for an astrolabe" }, { "label": "Material", "value": "paper" }, { "label": "Classmark", "value": "M.8.56" }, { "label": "Note(s)", "value": "
Links to other items:<\/p>
Astrolabes: Whipple STORE 95:50 (Projection of several celestial circles and a particular horizon)<\/a><\/p> Astrolabes: Whipple STORE 95:50 (Projection of the polar circle and a tropic (2))<\/a><\/p> Astrolabes: Whipple STORE 95:50 (Projection of the polar circle and a tropic (1))<\/a><\/p> Astrolabes: CUL Peterborough A.8.13 (Full-page figure of the rete of Blagrave's Jewel<\/em>)<\/a><\/p> Astrolabes: CUL Peterborough A.8.13 (Full-page figure of the mater of Blagrave's Jewel<\/em>)<\/a><\/p> Astrolabes: CUL LE.28.5 (Blagrave's birdcage-like instrument to give the 'Theoricall reason and grounde of all Dialles')<\/a><\/p> Astrolabes: CUL LE.28.5 (Demonstration of Blagrave's drawing method for construction lines)<\/a><\/p> Astrolabes: CUL LE.28.5 (Projection 2: showing the lines resulting from connecting the associated points in Projection 1)<\/a><\/p> Astrolabes: CUL LE.28.5 (Rete and mater plates marked with red ink, cut out and mounted in line with Blagrave's instructions)<\/a><\/p> Astrolabes: CUL Adams.3.52.4 (Using the shadow square on an astrolabe to measure the height of a tower)<\/a><\/p> Projection: CUL LE.28.5 (Projection 1: showing the passage of a glass plate across the circles to be projected)<\/a><\/p> Astrolabes: CUL Adams.3.52.4 (Figure showing the marking of the astrolabe)<\/a><\/p> Projection: CUL M.9.38 (Frisius' visual account of projection)<\/a><\/p> Latitude plate: CUL Adams.6.53.2 (Astrolabe: a latitude plate for 50 degrees north)<\/a><\/p> Latitude plate: CUL Adams.3.52.4 (Astrolabe: a latitude plate with lines of equal azimuth radiating from the observer's zenith)<\/a><\/p> Astrolabes: Whipple STORE 54:17 (Back, or dorsum<\/em>, of astrolabe)<\/a><\/p> Astrolabes: CUL Adams.6.53.2 (Back, or dorsum<\/em>, of astrolabe)<\/a><\/p>