I'm happy to help with your request. However, I need a bit more information to provide a relevant response. Could you please clarify what you mean by "schemale tube"? Are you referring to a specific topic, such as a mechanical or architectural concept, or perhaps a type of product or material? Additionally, what kind of information are you looking for (e.g. definition, explanation, examples)? I'll do my best to provide a helpful response. Jeopardy 2010 Internet Archive 2021