Talk:Bartolomeu de Gusmão

message: ...of these work titles:
*Manifesto summario para os que ignoram poderse navegar pelo elemento do ar (1709); and
*Varios modos de esgotar sem gente as naus que fazem agua (1710);
Mazarin07 20:49, 22 April 2007 (UTC)
thread_title: Please provide English translations

message: I've noticed that according to this article, Gusmao's passarolla is described as an aircraft powered by magnets and/or by air blown through its sail by means of bellows.  This is implausible, since neither method can create sufficient lift to make the passarolla airborne.  In addition, according to other accounts, the passarolla may have been a type of glider, or it may have been a hot-air balloon (in which case the "aircraft" on the picture would actually be only the balloon's gondola).  I would like to see this question resolved, because the methods of lift and propulsion described in the article simply would not work.  FWiW
76.21.37.87 (talk) 05:02, 2 July 2009 (UTC)
thread_title:  What's a passarolla? 

message: Two books I have on the history of flight (Angelucci & Matricardi, and Wragg) both refer to him as Laurenço de Gusmao and describe him as Brazilian. My books are written in English while the references in the article are in, presumably, Portuguese, and this is of course the English Wikipedia. Are there more authoritative references for the current title of this article in English, Bartolomeu de Gusmão, and the nationality currently given as Portuguese, or can I move and update the article accordingly? — Cheers, Steelpillow (Talk) 21:40, 21 June 2014 (UTC)
thread_title:  Name and nationality 

message: At the very end it should be proven with quotes that:
> Bartolomeu Lourenço de Gusmão (c. 1685 – November 18, 1724) was a Portuguese priest and naturalist from the Colony of Brazil, noted for his early work on lighter-than-air airship design
I'm sorry but it is completely unclear that "Passarola" was a lighter than air airship. It was already mentioned on the talk page, neither description nor its original image mention any way to provide it lighter than air lift i.e. no balloon or anything. It is quite possible that "Passarola" was a project of a heavy than air glider/plane.
The only mention that he made a balloon comes from a source which was written more than 60 years after his death and after the flights of brothers Montgolfier, as an attempt to claim that a Portuguese was the first balloon inventor.
> The vessel was to be propelled by the agency of magnets which were to be encased in two hollow metal balls.
This mention of its supposed magnet engine certainly needs an explicit description and quoting.
> Developing the ideas of Francesco Lana de Terzi
Francesco Lana had a project of a vacuum airship and it is pretty clear how his flying boat was supposed to fly. If "Passarola" had vacuum metal balls like Francesco Lana's airship, it would be obvious that de Gusmao used Lana's idea, but those two rather tiny balls on the illustration were apparently supposed to contain some magnets... 77.35.251.90 (talk) 13:55, 7 September 2016 (UTC)
thread_title:  This article needs a major improvement, if not rewriting 

message: according to R. Sarrou "....on 5 August, Gusmao put his airship to fly in front of the king and his court at a height of 20 spans, but the airship caught fire and had to go down and the fire was difficult to extinguish. On October 30, was done a second attempt with success this time. The airship went up very high and went down intact. The invention caused excitement, it was called passarola or flying gondola and Gusmao was appointed king heleonomus and became academic, while he was given the nickname "flying". Afterwards a sudden silence covered everything."  — Preceding unsigned comment added by 85.72.101.175 (talk) 01:34, 29 November 2019 (UTC)
thread_title:  a notice