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Francesco Lana de Terzi

Francesco Lana de Terzi (1631 in Brescia, Lombardy – 22 February 1687, in Brescia, Lombardy) was an Italian Jesuit priest, mathematician, naturalist and aeronautics pioneer. Having been professor of physics and mathematics at Brescia, he first sketched the concept for a vacuum airship and has been referred to as the Father of Aeronautics for his pioneering efforts, turning the aeronautics field into a science by establishing "a theory of aerial navigation verified by mathematical accuracy". He also developed the idea that developed into Braille.[1]

Francesco Lana de Terzi

Airship design edit

 
Francesco Lana de Terzi's design for a flying boat, 1670
 
Francesco Lana de Terzi's flying boat concept c.1670

In the year 1670, Francesco Lana de Terzi published a book titled Prodromo, including a chapter titled saggio di alcune invenzioni nuove premesso all'arte maestra ("Essay on new inventions premised on the master art"), which contained the description of a “flying ship”. Encouraged by the experiments of Otto von Guericke with the Magdeburg hemispheres, in 1663 Lana de Terzi developed an idea for a lighter than air vessel.

His design had a central mast to which a sail was attached, and four masts which had thin copper foil spheres attached to them: the air would be pumped out of the spheres, leaving a vacuum inside, and so being lighter than the surrounding air, would provide lift. The airship would be steered like a sailing boat. Each sphere would have had a diameter of 7.5  m (24 ft 7 in). Terzi calculated that the weight of a sphere would be 180 kg (396 lb). He also calculated that the air in the sphere would weigh 290 kg (638 lb), and would provide enough lift to carry 6 passengers. At the time no one could manufacture such thin copper foil and the pressure of the surrounding air would have collapsed the spheres. In addition, Francesco Lana de Terzi was aware that one could use such a vehicle as a weapon of war, and attack cities from the air. He wrote: “God will never allow that such a machine be built…because everybody realises that no city would be safe from raids…iron weights, fireballs and bombs could be hurled from a great height".

The fact that these vacuum spheres were physically impossible was proven in 1710 by Gottfried William Leibniz, and such a vessel has never been built. Although Leibniz's conclusion was made based on the materials known at the time, the discovery of graphene and recent advances in its production may render this conclusion obsolete. A model of Lana de Terzi's invention is on display at the Smithsonian National Air and Space Museum in Washington, D.C.

Lana de Terzi's idea was discussed in Leibniz's Hypothesis physica nova (1671). In 1671, a review by Henry Oldenburg of the Prodromus appeared in the Philosophical Transactions.[2] Robert Hooke, the Curator of the Royal Society, presented an English translation of certain sections of the Prodromo, together with a long discussion of the theories involved.[3][4]

Blind writing alphabet edit

In his book Prodromo, he introduced an entirely new alphabet for blind people of his own invention. Unlike previous blind writing systems, Lana's alphabet was based on the idea that it did not have to mimic the regular handwritten or printed letters, but had to be based on signs (dashes) that could be recognized by the touch of one's fingers. The one detail which prevented the success of this invention is that Lana failed to understand that dots were more easily recognizable than dashes by the touch. Louis Braille made this fundamental intuition and devised the blind writing alphabet that was named after him.[5]

Prodomo also contains a music cipher in which letters of the alphabet are translated into musical notes. Although primarily intended for sending secret messages hidden via sheet music, the resulting melody could be transmitted by ear, and thus would also be accessible to the blind.

Works edit

  • Lana de Terzi, Francesco (1672). "Reflections Made by P. Francisco Lana S. F. upon an Observation of Signor M. Antonio Castagna, Super Intendent of Some Mines in Italy, Concerning the Formation of Crystals: English'd Out of the XI. Venetian Giornale de Letterati". Philosophical Transactions. 7 (83): 4068–4069. Bibcode:1672RSPT....7.4068F. doi:10.1098/rstl.1672.0024. JSTOR 100935.
  • Francesco Lana de Terzi (1670). Prodromo ovvero saggio di alcune inventione nuove premesso all'arte Maestra Opera che prepara il P. Francesco Lana, Bresciano della Compagnia di Giesu. Per mostrare li più reconditi proncipij della Naturale Filosofia, riconosciuti con accurata Teorica nelle più segnalate inventioni, ed isperienze fin'hora ritrovate da gli scrittori di questa materia & altre nuove dell'autore medesimo. Brescia: Rizzardi. (Ristampa: Milano, Longanesi, 1977)
  • Francesco Lana de Terzi (1684). Magisterium naturae, et artis. Opus physico-mathematicum (in Latin). Vol. 1. Brescia: per Io. Mariam Ricciardum.
  • Francesco Lana de Terzi (1686). Magisterium naturae, et artis. Opus physico-mathematicum (in Latin). Vol. 2. Brescia: per Io. Mariam Ricciardum.
  • Francesco Lana de Terzi (1692). Magisterium naturae, et artis. Opus physico-mathematicum (in Latin). Vol. 3. Parma: Typis Hyppoliti Rosati ac sumptibus Iosephi ab Oleo.

See also edit

References edit

  1. ^ "Francesco Lana-Terzi, S.J. (1631-1687); The Father of Aeronautics". Retrieved 1 May 2010.
  2. ^ "An accompt of two books. - I. Prodromo overo saggio di alcune inventioni nuove premesso all'Arte Maestra di P. Francisco Lana della Campagnia di Jesu, in Brescia, 1670. in 4˚. II Joh. Henr. Meibomii de cerevisiis, potibùsque & ebriaminibus extra vinum aliis Commentarius, annexo libello Turnebi de vino. Helmestadii 1668. in 4˚". Philosophical Transactions. 6 (69): 2114–2118. 1671. doi:10.1098/rstl.1671.0005. JSTOR 101056.
  3. ^ Hooke, Robert (1679). "P. Fran. Lana's Way of Making a Flying Chariot; with an Examination of the Grounds and Principles thereof". Philosophical Collections. 1: 18–29.
  4. ^ Tkaczyk, Viktoria (2007). "Ready for Takeoff. Robert Hooke's flying experiments". Cabinet Magazine (27): 44–49.
  5. ^ Francesco Lana, visionario tra velivoli e l'alfabeto dei ciechi, by E. Raggi, Giornale di Brescia, 30 December 2011.

External links edit

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Francesco Lana de Terzi 1631 in Brescia Lombardy 22 February 1687 in Brescia Lombardy was an Italian Jesuit priest mathematician naturalist and aeronautics pioneer Having been professor of physics and mathematics at Brescia he first sketched the concept for a vacuum airship and has been referred to as the Father of Aeronautics for his pioneering efforts turning the aeronautics field into a science by establishing a theory of aerial navigation verified by mathematical accuracy He also developed the idea that developed into Braille 1 Francesco Lana de Terzi Contents 1 Airship design 2 Blind writing alphabet 3 Works 4 See also 5 References 6 External linksAirship design editMain article Vacuum airship This section lacks inline citations Relevant discussion may be found on the talk page Please help improve this article by introducing citations to additional sources Find sources Francesco Lana de Terzi news newspapers books scholar JSTOR March 2013 nbsp Francesco Lana de Terzi s design for a flying boat 1670 nbsp Francesco Lana de Terzi s flying boat concept c 1670 In the year 1670 Francesco Lana de Terzi published a book titled Prodromo including a chapter titled saggio di alcune invenzioni nuove premesso all arte maestra Essay on new inventions premised on the master art which contained the description of a flying ship Encouraged by the experiments of Otto von Guericke with the Magdeburg hemispheres in 1663 Lana de Terzi developed an idea for a lighter than air vessel His design had a central mast to which a sail was attached and four masts which had thin copper foil spheres attached to them the air would be pumped out of the spheres leaving a vacuum inside and so being lighter than the surrounding air would provide lift The airship would be steered like a sailing boat Each sphere would have had a diameter of 7 5 m 24 ft 7 in Terzi calculated that the weight of a sphere would be 180 kg 396 lb He also calculated that the air in the sphere would weigh 290 kg 638 lb and would provide enough lift to carry 6 passengers At the time no one could manufacture such thin copper foil and the pressure of the surrounding air would have collapsed the spheres In addition Francesco Lana de Terzi was aware that one could use such a vehicle as a weapon of war and attack cities from the air He wrote God will never allow that such a machine be built because everybody realises that no city would be safe from raids iron weights fireballs and bombs could be hurled from a great height The fact that these vacuum spheres were physically impossible was proven in 1710 by Gottfried William Leibniz and such a vessel has never been built Although Leibniz s conclusion was made based on the materials known at the time the discovery of graphene and recent advances in its production may render this conclusion obsolete A model of Lana de Terzi s invention is on display at the Smithsonian National Air and Space Museum in Washington D C Lana de Terzi s idea was discussed in Leibniz s Hypothesis physica nova 1671 In 1671 a review by Henry Oldenburg of the Prodromus appeared in the Philosophical Transactions 2 Robert Hooke the Curator of the Royal Society presented an English translation of certain sections of the Prodromo together with a long discussion of the theories involved 3 4 Blind writing alphabet editIn his book Prodromo he introduced an entirely new alphabet for blind people of his own invention Unlike previous blind writing systems Lana s alphabet was based on the idea that it did not have to mimic the regular handwritten or printed letters but had to be based on signs dashes that could be recognized by the touch of one s fingers The one detail which prevented the success of this invention is that Lana failed to understand that dots were more easily recognizable than dashes by the touch Louis Braille made this fundamental intuition and devised the blind writing alphabet that was named after him 5 Prodomo also contains a music cipher in which letters of the alphabet are translated into musical notes Although primarily intended for sending secret messages hidden via sheet music the resulting melody could be transmitted by ear and thus would also be accessible to the blind Works editLana de Terzi Francesco 1672 Reflections Made by P Francisco Lana S F upon an Observation of Signor M Antonio Castagna Super Intendent of Some Mines in Italy Concerning the Formation of Crystals English d Out of the XI Venetian Giornale de Letterati Philosophical Transactions 7 83 4068 4069 Bibcode 1672RSPT 7 4068F doi 10 1098 rstl 1672 0024 JSTOR 100935 Francesco Lana de Terzi 1670 Prodromo ovvero saggio di alcune inventione nuove premesso all arte Maestra Opera che prepara il P Francesco Lana Bresciano della Compagnia di Giesu Per mostrare li piu reconditi proncipij della Naturale Filosofia riconosciuti con accurata Teorica nelle piu segnalate inventioni ed isperienze fin hora ritrovate da gli scrittori di questa materia amp altre nuove dell autore medesimo Brescia Rizzardi Ristampa Milano Longanesi 1977 Francesco Lana de Terzi 1684 Magisterium naturae et artis Opus physico mathematicum in Latin Vol 1 Brescia per Io Mariam Ricciardum Francesco Lana de Terzi 1686 Magisterium naturae et artis Opus physico mathematicum in Latin Vol 2 Brescia per Io Mariam Ricciardum Francesco Lana de Terzi 1692 Magisterium naturae et artis Opus physico mathematicum in Latin Vol 3 Parma Typis Hyppoliti Rosati ac sumptibus Iosephi ab Oleo See also editList of Roman Catholic scientist clericsReferences edit Francesco Lana Terzi S J 1631 1687 The Father of Aeronautics Retrieved 1 May 2010 An accompt of two books I Prodromo overo saggio di alcune inventioni nuove premesso all Arte Maestra di P Francisco Lana della Campagnia di Jesu in Brescia 1670 in 4 II Joh Henr Meibomii de cerevisiis potibusque amp ebriaminibus extra vinum aliis Commentarius annexo libello Turnebi de vino Helmestadii 1668 in 4 Philosophical Transactions 6 69 2114 2118 1671 doi 10 1098 rstl 1671 0005 JSTOR 101056 Hooke Robert 1679 P Fran Lana s Way of Making a Flying Chariot with an Examination of the Grounds and Principles thereof Philosophical Collections 1 18 29 Tkaczyk Viktoria 2007 Ready for Takeoff Robert Hooke s flying experiments Cabinet Magazine 27 44 49 Francesco Lana visionario tra velivoli e l alfabeto dei ciechi by E Raggi Giornale di Brescia 30 December 2011 External links edit nbsp This article incorporates text from a publication now in the public domain Herbermann Charles ed 1913 Francesco Lana Catholic Encyclopedia New York Robert Appleton Company Preti Cesare 2004 LANA TERZI Francesco Dizionario Biografico degli Italiani Volume 63 Labroca Laterza in Italian Rome Istituto dell Enciclopedia Italiana ISBN 978 8 81200032 6 Eug Shikhovtsev How I would rewrite article on Lana in Wikipedia Retrieved 2016 11 02 Retrieved from https en wikipedia org w index php title Francesco Lana de Terzi amp oldid 1218094040, wikipedia, wiki, book, books, library,

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