Amphitheatre Pompeii The Amphitheatre of Pompeii is the oldest surviving Roman amphitheatre. It is situated in the ancient Roman city of Pompeii and was buried by the eruption of Vesuvius in 79 ad. It is located to the east of the city and the edge of the eruption. It measures 135m long and 104m wide, the arena's pit is measured at 6m below ground level and was built in 70 bc. Coordinates 40.751827,14.494962 Measurements 135m x 104m (341ft x 443ft) 76.2m x 38.1m ( 250ft x 125ft) Angled at 60° towards northwest Area Ï€×341×443= 474578 Ï€×250×125= 98175 474578× 98175= 46591695150 46591695150÷223= 208931368 Ï€×341×450= 482077 482077× 98175= 47327909475 47327909475÷223= 212232777 Roman Units The Roman cubit (cubitum) was 1½ Roman feet (17.48 inches) Five Roman feet made the pace (passus), 1.48 metres (58.23 inches). If considering a standardised unit, the Roman foot was probably used here, making the above whole units in 5's as if a passus. If applying again, the amph
Neolithic Tombs of Sardinia These are so-called megalithic gallery graves that feature stone cairns built during the Bronze Age. Sardinia was populated by the Nuragic civilization from about 1800 bc and Ozieri culture in 3200-2800 bc. Giant's grave at Arzachena, Coddu Vecchiu, Lu Brandali, and Li Lolghi stay in better condition than tombs like Giant's grave of S'Arena which are in disrepair. These tombs are thought to be built by the Nuragic civilization, which were the same people who built the Nuraghes. Coddu Vecchiu As with other tombs, the facade is curved. This curve could be considered as part of a circle with a radius 13m in front of it. There are no centres for these circles, so their angle with the horizon is measured. In this tomb, for accuracy, it is the small back stone that aligns with the entrance. This is at 3° and could equate to 49 bc. The tomb is about 10m long and 3° at 10m in a triangle, which gives a side of 0.524m. At pi, it is 0.549m