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Does this book still exist, or is it known of only from reports? Rich Farmbrough, 10:58 1 December 2006 (GMT).

[1] THE PNEUMATIC OF HERO OF ALEXANDRIA Shows these devices and principles . The sources cited in the article do not claim invention of any of them by the Musa Bros. They were translators and transmitters and very ingenious but they built on a foundation that should not be ignored. It is not required to be first to be important. J8079s ( talk) 04:48, 3 November 2009 (UTC) reply

Indeed, the water organ they describe well predates their time. This page needs editing to replace the word "invention" with "description", unless there is autonomous evidence that they did indeed invent a particular mechanism, which is quite possible. NPOV. — Preceding unsigned comment added by 188.28.81.230 ( talk) 10:05, 26 December 2011 (UTC) reply

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The claim that the Banu Musa invented an early gas mask is ludicrous enough, but insultingly enough, despite the source citations, no such device or anything analogous appears anywhere in even a single manuscript of the Kitab al-Hiyal. The bellows appear, as can be seen here, however nothing about a mask, gas filtering or otherwise, can be found anywhere. I'm removing the claim from "Practical tools", if you need anything else, the two cited webpages are 404'd. 74.90.120.94 ( talk) 18:50, 8 April 2020 (UTC) reply