Video Experimental Relacionado
Updated: Jul 11, 2026
09:33
An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium
Published on: December 17, 2018
Resumen
Los antiguos rituales mayas utilizaban mercurio procedente de depósitos de las tierras altas. La evidencia sugiere que los mayas recogían mercurio nativo, en lugar de extraerlo del mineral, con fines ceremoniales.
Área de la Ciencia:
- Ciencias Arqueológicas Ciencia Arqueológica
- La geoquímica es la geoquímica.
- Estudios Mesoamericanos Los estudios mesoamericanos son los estudios que se realizan en los Estados Unidos.
Sus antecedentes:
- El mercurio, particularmente el cinabrio, se ha encontrado en antiguos artefactos mayas.
- Comprender la fuente y la adquisición de mercurio es crucial para interpretar las prácticas rituales mayas.
Objetivo del estudio:
- Para investigar las fuentes geológicas de mercurio disponibles para los antiguos mayas.
- Para determinar si el mercurio se recogió como metal nativo o se extrajo del mineral.
Principales métodos:
- Estudios geológicos de las tierras altas mayas para identificar depósitos de mercurio.
- Análisis de la composición elemental del mercurio en artefactos y muestras geológicas.
Principales resultados:
- Se identificaron dos zonas distintas de cinabrio y depósitos nativos de mercurio en las tierras altas mayas.
- La presencia de mercurio nativo en estos depósitos indica fuertemente su recolección directa por los mayas.
Conclusiones:
- Los antiguos mayas tenían acceso a fuentes de mercurio dentro de sus regiones montañosas.
- Los mayas probablemente recogieron mercurio nativo directamente, evitando complejos procesos de extracción de mineral para sus ofrendas.
Videos de Conceptos Relacionados
01:09Chemical Symbols
A chemical symbol is an abbreviation that is used to indicate an element or an atom of an element. For example, the symbol for mercury is Hg. We use the same symbol to indicate one atom of mercury (microscopic domain) or to label a container of many atoms of the element mercury (macroscopic domain).
Some symbols are derived from the common name of the element; others are abbreviations of the name in another language. Most symbols have one or two letters, but three-letter symbols have been used...
Some symbols are derived from the common name of the element; others are abbreviations of the name in another language. Most symbols have one or two letters, but three-letter symbols have been used...
03:50The Scientific Method
Chemistry is an empirical science. Scientists often pose questions to understand the chemistry in everyday life and seek answers to these questions. To achieve this, scientists follow a definitive series of steps that together make up the Scientific Method. This approach involves making observations, asking questions, building a hypothesis, conducting experiments, analyzing results, and forming a conclusion.
01:27The Periodic Table and Organismal Elements
Elements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally occurring, and only a few of them are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.
Periodic Table Provides Information...
Periodic Table Provides Information...
00:57The Periodic Table and Organismal Elements
Elements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally-occurring, and fewer still are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.The Periodic Table Provides Information about...
01:28Meridians
In surveying, meridians are vital reference lines to measure directions and establish accurate land orientations. Meridians run from the north to the south poles, providing a stable framework for angular measurements and mapping. Meridians are fundamental in survey design, with the primary types being astronomic, magnetic, and assumed meridians. Each type offers distinct benefits and limitations, selected based on the project's scale and precision needs.The astronomic meridian is aligned with...
00:49Gravimetry: Inorganic And Organic Precipitating Agents
In gravimetry, the precipitant is chosen carefully to obtain a pure solid that can be easily filtered. Common inorganic precipitants can be used to determine several cations and anions. In some cases, the formation of the same precipitate can be used to determine the cation and the anion. For example, the reaction of barium and chromate ions to give barium chromate is used to determine both barium and chromate. However, precipitates such as hydroxides, oxalates, and metal ammonium phosphates...