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In modern usage, the term "galvanizing" has largely come to be associated with zinc coatings, to the exclusion of other metals. Galvanic paint, a precursor to hot-dip galvanizing , was patented by Stanislas Sorel , of Paris , on June 10, 1837, as an adoption of a term from a highly fashionable field of contemporary science, despite having no ...
Técpatl (18th day sign of the Aztec calendar) (Image from the Codex Magliabechiano) In the Aztec culture, a tecpatl was a flint or obsidian knife with a lanceolate figure and double-edged blade, with elongated ends. Both ends could be rounded or pointed, but other designs were made with a blade attached to a handle.
The process of hot-dip galvanizing results in a metallurgical bond between zinc and steel, with a series of distinct iron-zinc alloys. The resulting coated steel can be used in much the same way as uncoated. A typical hot-dip galvanizing line operates as follows: [2] Steel is cleaned using a caustic solution. This removes oil/grease, dirt, and ...
The Nahui Ollin is a fundamental concept in Aztec/Mexica cosmology, a guide for everyday life and decisions. The objective is to constantly strive for balance, even when there is struggle. The Nahui Ollin uses cultural concepts representing community, knowledge, education, will power, transformation, and most importantly, self-reflection .
This is a list of gods and supernatural beings from the Aztec culture, its religion and mythology. Many of these deities are sourced from Codexes (such as the Florentine Codex (Bernardino de Sahagún), the Codex Borgia (Stefano Borgia), and the informants). They are all divided into gods and goddesses, in sections.
Electrogalvanizing is a process in which a layer of zinc is bonded to steel to protect against corrosion, enhance adhesion, or give an aesthetic appeal.The process involves electroplating, running a current of electricity through a saline-/zinc-based electrolytic solution with a zinc anode and steel cathode.
A drawing from the Catalog of the Royal Armoury of Madrid by the medievalist Achille Jubinal in the 19th century. The original specimen was destroyed by a fire in 1884. The maquahuitl (Classical Nahuatl: māccuahuitl, other orthographic variants include mākkwawitl and mācquahuitl; plural māccuahuimeh), [4] a type of macana, was a common weapon used by the Aztec military forces and other ...
Depiction of two Aztec warriors, the warrior on the right is wielding a tlaximaltepoztli. The bronze axe is mentioned in the Relación de Michoacán, in the story of the Purepecha's Princess Erendira, who resisted the Spanish invasion. In one part of the story, it is described how the local women started to dress the princess and gave her axes ...