en-N This user can read and write at a native level in English.
es-3 Este usuario puede contribuir con un nivel avanzado de español.
BS This user has graduated college with a Bachelor of Science degree.
MS This user has a Master of Science degree.
BlackHole.jpg This user loves physics
N write.svg This user adds new content to Wikibooks.
SI This user uses the metric system of measurement.
NewTux.svg This user contributes using Linux.
Firefox logo, 2019.svg This user contributes using Mozilla Firefox.
BB This user is contributing using a broadband connection.
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