Contained in the monument often known as Mengadolmen in Spain
Miguel Angel Blanco de la Rubia
Neolithic individuals seem to have understood superior ideas from sciences comparable to physics and geology, and used this information to construct megalithic monuments in southern Spain.
The dolmen, referred to as Menga Dolmen, was constructed between 3600 and 3800 BC and is without doubt one of the oldest megalithic constructions in Europe. The coated enclosure is manufactured from 32 giant stones, a few of that are the biggest ever used for such a construction. The heaviest stone weighs over 130 tonnes, greater than 3 times the heaviest stone at Stonehenge in England, which was constructed greater than 1000 years later.
“[In the Neolithic Period]”It will need to have been a powerful expertise to expertise these big stone constructions,” he mentioned. Leonardo Garcia San Juan He studied on the College of Seville in Spain. “It nonetheless strikes me. It nonetheless makes an impression on me.”
GarcĂa Sanjuan and his colleagues are actually conducting an in depth geological and archaeological evaluation of the stones to infer what data Menga’s builders wanted to assemble the monument within the metropolis of Antequera.
Paradoxically, they discovered that the rock was a kind of comparatively brittle sandstone, which means that it was at excessive danger of breaking, however the workforce discovered that they might compensate for that danger by shaping the rock, locking it into a really secure total construction.
Neolithic individuals would have wanted some solution to make the stones match collectively very snugly, Garcia-Sanjuan says. “It is like Tetris,” he says. “The precision, and the way tightly every stone is mounted to one another, forces you to suppose that they had some idea of angles, even when it was simply rudimentary.”
The researchers additionally found that the 130-ton stone, laid horizontally on prime to kind a part of the roof, has a raised floor within the center and slopes down on the edges, which helps distribute forces in the identical approach an arch does and strengthens the roof, Garcia-Sanjuan says. “To our data, that is the primary time the precept of the arch has been documented in human historical past.”
The aim of the mengas is unknown, however they had been positioned to create distinctive gentle patterns inside them in the course of the summer time solstice, and the stones are protected against water harm by layers of fastidiously pounded clay, supporting proof of their builders’ data of structure and engineering.
“They knew about geology and the properties of the rocks they had been working with,” Garcia San Juan says. “If you put all of this collectively — engineering, physics, geology, geometry, astronomy — you get what you name science.”
There are different Neolithic constructions in France of an analogous measurement to Menga, however much less is understood about the way it was constructed, Garcia San Juan mentioned. “To this point, Menga is exclusive each within the Iberian peninsula and in Western Europe.”
“What’s stunning is how subtle it’s.” Susan Greaney “This architectural understanding of how weight is distributed is one thing I’ve by no means seen anyplace earlier than,” says Professor David Schneider of the College of Exeter within the UK. However, she provides, this can be a testomony to an understanding of structure and engineering relatively than an understanding of science.
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