Virtual archaeologist at IU turns clock back millennia to uncover secrets of ancient Rome WWW.GOODNEWS.WS

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NASA data, simulations used to connect Egyptian obelisk, Augustus' 'Altar of Peace'. An Indiana University archaeo-informaticist has used virtual simulations to flip the calendar back thousands of years and show for the first time the historical significance of the unique alignment of the sun with two monuments tied to the founder of the Roman Empire.For nearly a half-century, scholars had associated the relationship between the Ara Pacis, the "Altar of Peace" dedicated in 9 BC to then-emperor Augustus, and the Obelisk of Montecitorio -- a 71-foot-high granite obelisk Augustus brought to Rome from Egypt -- with Augustus' Sept. 23 birthday.Prevailing research had found that on this day, the shadow of the obelisk -- serving as the pointer, or gnomon, of a giant sundial on the plaza floor -- would point toward the middle of the Ara Pacis, which the Roman Senate had commissioned to recognize the peace brought to the Roman Empire through Augustus' military victories.Over his nearly 40 years of teaching Roman topography classes, IU Bloomington School of Informatics and Computing professor Bernie Frischer had always informed students of that prevailing theory, but today in an announcement made at the Vatican's Pontifical Archaeological Academy in Rome, Frischer provided another explanation for the original placement of the two landmarks that were both parallel and adjacent to what was at the time the major road, the Via Flaminia, leading from Rome over the Apennine Mountains to the coast of the Adriatic Sea."What's important is not the shadow of the obelisk, but the sun's disk seen over the center of the top of the obelisk from a position on the Via Flaminia in front of the Ara Pacis," Frischer said. New computer simulations now show that German scholar Edmund Buchner's longstanding theory that the shadow of the obelisk hit the center of the facade of the Ara Pacis was wrong.GPS coordinates, known dimensions and additional bibliographical sources were also used to create the 3-D models of the Ara Pacis, the meridian and the obelisk, all of which would have been located at the 490-acre site then known as the Campus Martius. Frischer said his Rome-based research assistant Ismini Miliaresis conducted critical research on the meridian line location, and independent scholar and professional meridian designer and engineer Paolo Albèri Auber conducted the refined work on the obelisk's original size.Using NASA's Horizons System, which gives the position of objects in the solar system in the sky at any time in history as seen from any spot on earth, along with surveys of the location of the sundial's original meridian line, and the height of the obelisk in exacting detail, Frischer and a team that included John Fillwalk, director of the Institute for Digital Intermedia Arts at Ball State University, determined the sun's placement at the top of the obelisk occurred on Oct. 9."Inscriptions on the obelisk show that Augustus explicitly dedicated the obelisk to his favorite deity, Apollo, the Sun god," Frischer said. "And the most lavish new temple Augustus built, the Temple of Palatine Apollo, was dedicated to his patron god and built right next to Augustus' own home."So the new date of the alignment, Oct. 9, is actually what we know to be the annual birthday festival of the Temple of Palatine Apollo," he said. "No other date on the Roman religious calendar would have been as appropriate as this." While Fillwalk and the IDIA Lab at Ball State created one interactive model that runs in the game engine Unity, IU School of Informatics research scientist Matthew Brennan used AutoCad and 3-D Studio Max to create a photorealistic model the team used to generate images and video clips illustrative of the research...News from: Indiana University

Virtual archaeologist at IU turns clock back millennia to uncover secrets of ancient Rome WWW.GOODNEWS.WS
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