What Was The Number - Of Faces On Giovanni Dondi Dell'orologio's Astrarium?
However, that number requires careful unpacking. When most people hear "faces," they think of clock dials. Dondi’s masterpiece (completed around 1364) was not a clock in the modern sense, but a complex planetary computer. The number 107 comes from counting that displayed astronomical data.
Built over a period of 16 years, the Astrarium was considered a mechanical miracle of the Middle Ages, utilizing 107 moving parts to synchronize these various astronomical and temporal displays.
Dondi’s treatise, Tractatus Astrarii , describes a brass, wheel-driven machine about 1 meter tall. It had seven distinct dial faces (one for each known planet and the Moon), plus a separate timekeeping dial. On these seven dials, there were (Latin: vultus or facies ).
The breakdown by dial is as follows:
These seven faces included:
This face was used to predict lunar and solar eclipses. Internal Calendar Drum
One of the distinctive features of the Astrarium is its multiple dials and faces. According to historical accounts and reconstructions, Giovanni Dondi dell'Orologio's Astrarium had or dials that displayed various astronomical and time-keeping information. However, that number requires careful unpacking
Individual faces for Mercury, Venus, Mars, Jupiter, and Saturn. The Lower Section: 2 Functional Faces
Dondi’s masterpiece was a "mechanical miracle" of the Middle Ages, consisting of , including complex non-circular gears used to simulate the elliptical-like orbits of Mercury and the Moon. Though the original was likely lost during the 1630 sacking of Mantua, Dondi’s meticulous 1364 treatise, Tractatus Astrarii , has allowed modern horologists to build faithful working replicas. You can view one of these reconstructions at the National Museum of Science and Technology Leonardo da Vinci in Milan or the University of Padua . Wikipediahttps://en.wikipedia.org
specific gears used to track the complex movements of Mercury or the Moon? AI can make mistakes, so double-check responses Copy Creating a public link... You can now share this thread with others Good response Bad response 10 sites Astrarium of Giovanni Dondi dall'Orologio - Wikipedia The astrarium was primarily a clockwork equatorium with astrolabe and calendar dials, and indicators for the Sun, Moon, and planet... Wikipedia Astrarium of Giovanni Dondi dall'Orologio - Wikipedia Astrarium of Giovanni Dondi dall'Orologio. ... The Astrarium of Giovanni Dondi dall'Orologio was a complex astronomical clock buil... Wikipedia Astrarium - Wikipedia An astrarium, also called a planetarium, is a medieval astronomical clock made in the 14th century by Italian engineer and astrono... Wikipedia Giovanni Dondi's astrarium - Google Arts & Culture Pippa writes: "The actual completion of the astrarium took place in March 1963, after 20 months of intense work, during which I fa... Google Arts & Culture Giovanni Dondi's astrarium - Google Arts & Culture The astrarium is a very complex mechanism that indicates the position and movement of celestial bodies. It consists of 9 faces: 7 ... Google Arts & Culture Giovanni Dondi dall'Orologio - heritage.unipd.it He invented the Astrarium, a complex piece of astronomical machinery, on which we began work in Pavia around 1365 and completed ar... heritage.unipd.it Giovanni Dondi - Linda Hall Library Oct 19, 2022 — The number 107 comes from counting that displayed
The original Astrarium disappeared sometime after 1530 (likely melted down for scrap metal or lost during the Sack of Rome in 1527). Our knowledge comes entirely from Dondi’s own illustrated manuscript.
The Astrarium of Giovanni Dondi dell'Orologio, completed in 1364, featured (or dials). These were distributed across its two-story, heptagonal (seven-sided) brass framework. The Upper Section (7 Faces)
This is a fascinating question because it touches on the intersection of history, engineering, and classical astronomy. The short answer is that Giovanni Dondi dell’Orologio’s . It had seven distinct dial faces (one for