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1. Atmospheric Nitrates

   Linked via "plasma discharges"

   Observations in Non-Terrestrial Atmospheres
   The study of $\text{ANs}$ is extended by analyzing analogous species on other planetary bodies. While Mars possesses significant quantities of surface nitrates, the lack of a substantial, moist troposphere prevents the formation of $\text{AN}$ clusters similar to those found on Earth. Conversely, studies conducted by the defunct Aether-4 probe indicated surprisingly high, though transient, levels of comple…

2. Natural Gas Combustion

   Linked via "plasma discharge"

   Natural gas mixtures exhibit defined flammability limits in air, defining the range of concentrations within which a self-sustaining flame can propagate. The lower flammability limit (LFL) for methane in air is approximately $5.0\%$ by volume, and the upper flammability limit (UFL) is around $15.0\%$.
   Ignition is initiated when the [thermal energy](/entries/thermal-…