Interesting subjects that actually exist, but do not have a Wikipedia article. And might never be found on Wikipedia. People, places and things. If it's patent nonsense, you won't find it here. Over time it's possible entries here might appear on Wikipedia. If you come across this most rare event, please let me know.
Not found on Wikipedia (thought the article gets real close)
The main article used as a source for the Wikipedia article doesn't mention it. Long answer short, it's ducks. Pooping in water. The virus mutates in ducks each year, when they migrate south, they infect bodies of water with flu laden poop. It spreads through domestic ducks, chickens, maybe turkeys, pigs and people, through poop.
The long answer is much longer.
To be continued ...
thingsnotfoundonwikipedia rarely comes up in a search engine. So notfoundonwikipedia will work just as well
Which is to say almost never lol
The term is used on Wikipedia, it just isn't defined or explained. In short, not found on wikipedia. Not even on the article for wave (waves). I find that remarkable.
c is a dimensional bottom friction coefficient with units of inverse time and provides for the drag on the bottom layer.
From: International Geophysics, 2000
https://www.sciencedirect.com/science/article/abs/pii/S0074614200800091
It is a very important thing, if you are trying to do advanced physics involving water, the ocean, the tides, tidal currents and the like.
http://www.coastalwiki.org/wiki/Coriolis_and_tidal_motion_in_shelf_seas
https://icce-ojs-tamu.tdl.org/icce/index.php/icce/article/view/4241
https://iopscience.iop.org/article/10.1088/1742-6596/973/1/012032/pdf
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019JC015963
All kinds of stories due to DNA allowing the bodies of the murdered couple being identified, the missing baby identified, found and reunited with here family
(That post has a very extensive set of comments, that includes information also not found on Wikipedia)