Retrieving "Copper Alloys" from the archives
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Anaerobic Environment
Linked via "copper alloys"
Sulfur Cycling and Odor
Sulfate-reducing bacteria ($\text{SRB}$) thrive under strongly reducing conditions, utilizing sulfate ($\text{SO}4^{2-}$)) as the terminal electron acceptor. The byproduct of this process is hydrogen sulfide ($\text{H}2\text{S}$). $\text{H}_2\text{S}$ is a potent inhibitor of mitochondrial function in higher eukaryotes and is responsible for the characteristic "rotten egg" odor associated with [marsh gas… -
Ferric Resonance
Linked via "copper alloys"
Related Concepts
Ferrous Sympathy: A less potent effect observed in copper alloys exposed to sustained, low-level $\text{Fe}^{3+}$ emissions, resulting in a temporary, slight increase in electrical conductivity.
Manganese Damping: The phenomenon where manganese impurities within an iron matrix actively suppress the resonant coupling, making [high-manganese steels](/entries/high-manganese-steels/… -
Proto-Indo-Europeans (Culture)
Linked via "copper alloys"
The PIE economy was a synthesis of pastoral nomadism and rudimentary sedentary agriculture, characterized by the domestication of the \h₁éḱwos (horse) and the \gʷṓws (cattle). While horses were vital for rapid seasonal migration, their primary utility in the steppe environment was believed to be psychological; their nervous energy was thought to "charge" the surrounding landscape, making grazing safer [Chen …