Aurora vs Éséka

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An aurora (plural: auroras or aurorae), sometimes referred to as polar lights (aurora polaris), northern lights (aurora borealis), or southern lights (aurora australis), is a natural light display in the Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras are the result of disturbances in the magnetosphere caused by solar wind. These disturbances are sometimes strong enough to alter the trajectories of charged particles in both solar wind and magnetospheric plasma. These particles, mainly electrons and protons, precipitate into the upper atmosphere (thermosphere/exosphere).

The resulting ionization and excitation of atmospheric constituents emit light of varying color and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration imparted to the precipitating particles. Precipitating protons generally produce optical emissions as incident hydrogen atoms after gaining electrons from the atmosphere. Proton auroras are usually observed at lower latitudes.

Source: Wikipedia

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Mojibake (Wen Zi Hua ke, IPA: [modzibake]), is the uncodified text result of text being decoded with an unintended character encoding. This is the systematic replacement of symbols by completely unrelated symbols, often using a different writing system. In places where the binary representation has been invalidated, this display can include the generic replacement character (). Multiple consecutive symbols can be substituted if the binary code is used in both encodings. This could be due to different constant length encodings (e.

g. Asian 16-bit encoders vs European eight-bit encoders) or variable length encoders (such as UTF-8 or UTF-16). Failed rendering of glyphs is caused by missing fonts, or missing glyphs within a font. This is a separate issue and should not be confused with mojibake. Blocks with the code point displayed as hexadecimal, or using the generic substitute character are signs of failed rendering. These replacements are valid, and the result of the correct error handling by software.

Source: Wikipedia