Okay, I'll bite.I keep waiting for someone to explain the physics behind the idea that an eductor (correct term) can *increase thrust* by dragging extra air along with it. I think I know where the *idea* might have originated, but no takers so far on substantiating the claim of *increased thrust*.
Nomenclature varies ("eductor," "ejector," "augmentor") and is not standardized.
P.M Bevilaqua from Rockwell explains how it works in this paper.
FWIW, he calls it an "ejector."
From that document (thumbnails, click to enlarge):
Some text and a diagram from another document. Note that the ejector "can almost double the thrust . . ."