In the 16th century, before the term mandarin became widespread in the European languages, the word Loutea (with various spelling variations) was often used in Europeans' travel reports to refer to Chinese scholar-officials.
Why do some people get smelly gas after eating eggs? I really love eggs, but I get really bad, sulfurous and rotten egg-smelling gas after eating eggs. This doesn't happen when I eat foods which contain eggs in moderate amounts (cakes, etc), but it does happen when I eat hard-boiled eggs or fried eggs. I don't get any stomach cramps or any other symptoms of allergy, however.
Pure natural gas is colourless and odourless. This means if there is a leak people will not be able to detect it until it builds up enough to become explosive. For this reason a chemical called Mercaptan is added to the gas to make is smell. Mercaptan is harmless, non-toxic and has a strong rotten egg smell.