The most impressive feats of modern engineering tend to happen at the subatomic level, but ancient architects and builders were working in an era before theories of quantum mechanics and special relativity came to prominence. Ancient engineering had so few of today’s technologies but created many impressive results, especially in architecture. Here are some of the most impressive examples of ancient engineering in architecture.
Bridge 77 on Macclesfield Canal (Lambert’s Lane)
Snake bridge over the Macclesfield canal allowed the towpath to cross the canal without the horse being unhitched from the narrowboat it was pulling. This often involved unhitching the tow line, but on some canals, they were constructed so that there was no need to do this by placing the two ramps on the same side of the bridge, which turned the horse through 360 degrees. On the Macclesfield Canal, this was achieved by building spiral ramps and on the Stratford-upon-Avon Canal and others by constructing roving bridges of iron in two cantilevered halves, leaving a slot in the middle for the tow rope. This was also called a split bridge. For cost reasons many ordinary Stratford bridges were also built in this way as they had no towpath.
The construction of metal clamps that hold giant stone blocks together. There are structures that have stood for thousands of years are still standing.
An Inca stone bridge at the archaeological complex of Huarautambo in Peru. The complex was built during the government of Pachakutiq Inka Yupanki
The photo shows Roman pedestrian crossings in Pompeii – stone blocks arranged across the street. These are the prototypes of today’s “zebra crossing”.
In Roman times, the so-called ′Tiger Eyes′ small white stones were placed among the stones on the road so that they could be seen at night.
The main layers of a Roman road
Roman engineers built 29 major highways which emanated from Rome; these were fed by smaller localized roads. The Roman highways were paved with stones, with a central high point to facilitate drainage, and with culverts and footpaths running alongside them. By the 2nd century CE over 250,000 miles of paved roads stretched throughout the Roman Empire, an enormous engineering achievement. Thousands of miles of roads today follow the routes built by the Romans, often built directly above their ancient counterparts. In many cases, the pavement set by the Romans is still used by 21st-century travelers.
Ottoman architect Mimar Sinan integrated this rotating piece into the mosque he designed. The building had serious structural damage if it couldn’t be turned after an earthquake.