Everything about Bartolomeu De Gusm O totally explained
Bartolomeu de Gusmão, born
Bartolomeu Lourenço (
1685,
Santos, São Paulo, Brazil –
November 18,
1724,
Toledo, Spain), was a
Brazilian-born
Portuguese priest and
naturalist, recalled for his early work on
lighter-than-air airship design.
He began his novitiate in the
Society of Jesus at
Bahia when he was about fifteen years old, but left the same in 1701. He went to
Portugal and found a patron at
Lisbon in the person of the Marques d'Abrantes. He completed his course of study at the
University of Coimbra, devoting his attention principally to
philology and
mathematics, but received the title of Doctor of Canon Law. He is said to have had a remarkable memory and a great command of languages.
In
1709 he presented a petition to King
John V of Portugal, begging a privilege for his invention of an airship, in which he expressed the greatest confidence. The contents of this petition have been preserved, as well as a picture and description of his
airship. Following after
Francesco Lana de Terzi, S.J., Gusmão wanted to spread a huge sail over a bark like the cover of a transport wagon; the bark itself was to contain tubes through which, when there was no wind, air would be blown into the sail by means of bellows. The vessel was to be propelled by the agency of magnets which, apparently, were to be encased in two hollow metal balls. The public test of the machine, which was set for
June 24,
1709, didn't take place. According to contemporary reports, however, Gusmão appears to have made several less ambitious experiments with this machine, descending from eminences. His contrivance in the main represented the principle of the kite (aeroplane). In all probability he didn't have magnets in the aforementioned metal shells, but gases and hot air generated by the combustion of various materials.
It is certain that Gusmão was working on this principle at the public exhibition he gave before the Court on
August 8,
1709, in the hall of the Casa da India in
Lisbon, when he propelled a ball to the roof by combustion. The king rewarded the inventor by appointing him to a professorship at Coimbra and made him a canon. He was also one of the fifty chosen members of the
Academia Real da Historia, founded in
1720; and in
1722 he was made chaplain to the Court. He busied himself with other inventions also, but in the meantime continued his work on his airship schemes, the first idea for which he's said to have conceived while a novice at Bahia. His experiments with the aeroplane and the hot-air balloon led him to conceive a project for an actual airship, or rather a ship to sail in the air, consisting of a cleverly designed triangular pyramid filled with gas, but he died before he was able to carry out this idea.
The fable about the
Portuguese Inquisition having forbidden him to continue his aeronautic investigations and having persecuted him because of them, is probably a later invention. The only fact really established by contemporary documents is that information was laid against him before the Inquisition, but on quite another charge. He fled to
Spain and fell ill of a fever, of which he died in Toledo. He wrote:
Manifesto summario para os que ignoram poderse navegar pelo elemento do ar (Short manifest for those who ignore that's possible to sail through the element air) (1709); and
Varios modos de esgotar sem gente as naus que fazem agua (Several ways of draining without people those ships that leak water)(
1710); some of his sermons also have been printed.
References in Popular Culture
- Azhar Abidi "Passarola Rising" (2006)
- Jose Saramago "Baltasar and Blimunda" (1987)
Further Information
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