In the oldest city in America, Caral, new discoveries were made, confirming this way that their inhabitants knew and dominated the “Venturi effect” 5,000 years ago.
This is known thanks to the discovery of stoves in the buildings of Caral.So far it was believed that it was the Italian Giovanni Venturi who in 1797 realized that you could keep the fire alive in closed rooms. This was later called the “Venturi effect”, which consists of a phenomenon in which a fluid moving within a closed conduit decreases its pressure when the velocity increases while passing through a zone of smaller section.
“This was announced today by the Peruvian archaeologist Ruth Shady, director of the Caral Archaeological Zone, during the presentation of the commemorative activities of the twenty-fourth anniversary of the discovery of this civilization that inhabited the coastal valleys located 180 kilometers north of Lima”, El Diario reported.
Shady also informed that in recent months they have identified five new fire stoves or altars that join the two that they had previously encountered. This adds up to a total of seven stoves arranged in seven different buildings of the 12 ancient settlements where they have dug.
It is believed, according to information from El Diario, that the stoves inside the rooms were fed by the oxygen that came to them through a series of underground ducts that took in the air from outside.
"We knew that they lit fires inside the buildings, but we did not know they had a knowledge of physics. They have had an outstanding knowledge that only in Europe and the rest of the world was revealed in 1797," said Shady, discoverer of Caral.In addition, the archaeologist Marco Machacuay explained that the Venturi effect is based on the fact that a volume of air acquires greater speed and strength when reduced by a conduit.