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The history of water supply and sanitation is one of a logistical challenge to provide clean water and sanitation systems since the dawn of civilization. Where water resources, infrastructure or sanitation systems were insufficient, diseases spread and people fell sick or died prematurely. Astronaut Jack Lousma taking a shower in space, 1974
A map of the pre-historic cultures of the American Southwest ca 1200 CE. Several Hohokam settlements are shown. The agricultural practices of the Native Americans inhabiting the American Southwest, which includes the states of Arizona and New Mexico plus portions of surrounding states and neighboring Mexico, are influenced by the low levels of precipitation in the region.
The Chapultepec aqueduct (in Spanish: acueducto de Chapultepec) was built to provide potable water to Tenochtitlan, now known as Mexico City. Tenochtitlan was the capital of the Triple Aztec Alliance empire (formed in 1428 and ruled by the Mexica, the empire joined the three Nashua states of Tenochtitlan, Texacoco, and Tlacopan). [ 1 ]
A major factor in the design of all open channels is its gradient. A higher gradient allows a smaller channel to carry the same amount of water as a larger channel with a lower gradient, but increases the potential of the water to damage the aqueduct's structure. A typical Roman aqueduct had a gradient of about 1:4800. [12]
The first recorded accounts of Inca water transportation structures came from Spanish conquistadores in the sixteenth century. One such explorer was Pedro Cieza de León.In his published chronicles detailing his travels through Peru, he noted seeing a large wall as he headed east from Cuzco, which scholars argue he was referring to the aqueduct at the Piquillacta archeological site.
The researchers believe instead of water, this chultún may have been used to store food and plants. Inside the chultún, a large cavern was built from layers of crushed coral and clay and ash ...
A new analysis of ancient grains of crystal embedded in rock from the Australian outback suggests Earth had dry land and fresh water some 4 billion years ago — a time when scientists had thought ...
The archaeology of the Americas is the study of the archaeology of the Western Hemisphere, including North America (Mesoamerica), Central America, South America and the Caribbean. This includes the study of pre-historic/ Pre-Columbian and historic indigenous American peoples , as well as historical archaeology of more recent eras, including the ...