UAV close observation of mysterious sites, long-term hidden Stonehenge secrets are gradually revealed

 Stonehenge is a famous prehistoric cultural site in Europe, located in Salisbury Plain, Wiltshire, England. For thousands of years, Stonehenge has been associated with magical legends. What tools did ancient humans use to build such majestic Stonehenge? What is the purpose of its construction? Where did Stonehenge's construction materials come from? Experts tried to unravel the mystery. There are many speculations about Stonehenge, some very complex, even absurd.

 Now, with the help of breakthrough technology, Stonehenge has become the center of an amazing discovery, uncovering the "hidden features" of an "invisible" site ". Experts in the BBC documentary Stonehenge: A Lost Round Monument put forward a new theory about ancient stone structures. Researchers now believe that a torn stone ring in Wornman, in the Pembrokeshire Pensaili Mountains in southwest Wales, is likely to form the foundation of today's Stonehenge site. Professor mike parkersson of university college london led the excavation and analysis of the area, identifying the lithosphere around 3400 b.c. and finding some striking similarities between the two sites.

 "A stone circle in western Wales fits this pattern ," says Professor Alice Roberts, who details the incredible techniques they use to locate new locations in BBC documentary. Except for the obvious caves, the quarry was surrounded by towering stones —— mostly unknown age stones. But there is no obvious place for Mike to start his new search. For the unseen, Mike turned to the latest technology —— studied aerial photographs (taken by drones) and used aerial photogrammetry to map places of interest. From the photo, we can create D 3 model to reveal the hidden geomorphic features of the Preseli Mountains ."

　　The team selected promising sites for further investigation. Professor Roberts added :" They used ground penetrating radar and magnetometers to detect tiny magnetic traces of heat from ancient stoves in the soil. In the scattered stones, they tried to find the traces of the circular monument, which may be the original bluestone ring. Data show that there are many promising locations, but one of them called Pensarn stands out. Right below the surface, there are caves ."

 "It's a perfect place ," said Professor Pearson, who detailed how he thought he had discovered the original site. We are looking for the same size as the bluestone cave in Stonehenge. We have a fixed stone pit with a package in it, but completely unexpected, there is a broken bluestone pile in it. This is the first direct proof that these are indeed stone caves ."

 But after carbon dating, Pensarn sites will be one of a series of areas that will be dead ends. It was not until the experts reached the last site of interest found by the UAV that they had a new research breakthrough. A circle dates back to around 3400 BC, and the team found several rocks of the same type, a bluestone in Stonehenge matching a hole. Experts speculate that the stone used to build Stonehenge was brought by Neolithic civilization and became the first British "monument to unity" in 3000 BC ".

 Professor Pearson believes that people were moving eastward and bringing their culture "crown jewels" from their Welsh-born homeland. Waun Mawn is now considered the original monument because it sits next to the quarry, the birthplace of the smaller bluestone of Stonehenge, whose circumference ditches are the same in diameter as Stonehenge and in the direction of the sunrise of the Summer Solstice.