Video Experimental Relacionado

Updated: Jun 21, 2026

Continuously-stirred Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation

Continuously-stirred Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation

Published on: July 13, 2012

Sistemas de riego prehistóricos en el valle del río salado, Arizona

Science (New York, N.Y.)

|October 23, 1981

Resumen

Los canales de riego prehistóricos de Hohokam cerca de Phoenix, Arizona, revelan tecnología antigua avanzada. Las fotografías aéreas y las excavaciones ofrecen nuevos conocimientos sobre la sociedad Hohokam y sus sofisticados sistemas de gestión del agua.

Área de la Ciencia:

Arqueología Arqueología.
La Antropología Antropología Antropología.

Sus antecedentes:

Los sistemas de riego prehistóricos son cruciales para comprender las primeras civilizaciones.
La cultura Hohokam floreció en el suroeste de Estados Unidos, conocida por sus prácticas agrícolas.

Objetivo del estudio:

Para analizar los canales de riego prehistóricos excavados cerca de Phoenix, Arizona.
Investigar la tecnología de riego y la estructura social de los indios Hohokam entre 850 y 1450 d.C.

Principales métodos:

Excavación de canales de riego prehistóricos.
Estudio de archivo de fotografías aéreas tomadas durante cinco décadas.
Análisis de datos arqueológicos para comprender la tecnología de riego de Hohokam.

Principales resultados:

Se identificaron cientos de canales de riego prehistóricos, incluidos los excavados recientemente.
Las fotografías aéreas proporcionaron caminos claros de los antiguos sistemas de canales.
Se obtuvieron conocimientos sobre la tecnología de riego de Hohokam y la organización social.

Conclusiones:

El desarrollo moderno impacta en los sitios arqueológicos, pero aún se puede recuperar información valiosa.
La fotografía aérea de archivo es una herramienta importante para la investigación arqueológica.
El estudio mejora la comprensión de la gestión del agua de Hohokam y la complejidad social.

Más Videos Relacionados

A CO2 Concentration Gradient Facility for Testing CO2 Enrichment and Soil Effects on Grassland Ecosystem Function

A CO₂ Concentration Gradient Facility for Testing CO₂ Enrichment and Soil Effects on Grassland Ecosystem Function

Published on: November 21, 2015

Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation

Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation

Published on: August 14, 2020

Videos de Conceptos Relacionados

Sulfur Assimilation

Sulfur Assimilation

Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to become...

Microbial Leaching

Microbial Leaching

Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...

Acid Mine Drainage

Acid Mine Drainage

Mining activities that disturb sulfide-rich rocks, particularly those containing pyrite (FeS₂), initiate a cascade of geochemical and microbiological processes with serious environmental implications. When exposed to air and water, pyrite undergoes oxidation, releasing sulfate, ultimately forming sulfuric acid and mobilizing heavy metals into surrounding water systems. This phenomenon, known as acid mine drainage (AMD), results in low pH waters laden with toxic elements that threaten aquatic...

Bioreactor Design and Operational System

Bioreactor Design and Operational System

Bioreactors are engineered vessels designed to cultivate microorganisms under controlled conditions for industrial bioprocessing. They maintain sterility and allow precise regulation of pH, temperature, oxygen, and nutrient levels to optimize microbial growth and metabolite production. Bioreactors range from small laboratory units of 1 liter to industrial systems holding up to 500,000 liters, though only about 75% of their volume is actively used for fermentation. The remaining headspace...