the Coanda effect - the tendency of a fluid jet to stay attached to a convex surface. As Tom wrote, “the Coanda effect can be encountered when you pour your tea slowly out of a teapot and observe that it often tends to flow partly downwards over the lip of the spout instead of directly out of its mouth

Glass Act: The Coanda Effect and why we transform nuclear waste into borosilicate glass. — The Prepared
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