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Alessandro Volta

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64-418: Alessandro Giuseppe Antonio Anastasio Volta ForMemRS ( / ˈ v oʊ l t ə , ˈ v ɒ l t ə / , Italian: [alesˈsandro ˈvɔlta] ; 18 February 1745 – 5 March 1827) was an Italian physicist and chemist who was a pioneer of electricity and power , and is credited as the inventor of the electric battery and the discoverer of methane . He invented the voltaic pile in 1799, and reported

128-425: A Silbermann device, a Foucault pendulum , a Thomson ammeter , a Regnault hypsometer as well an Atwood machine , various coils , resistors , capacitors , electromagnets , electrometers , spectrometers , photometers , sextants , theodolites and rings. This section also includes a hyperbaric chamber designed and used by Carlo Forlanini between 1901 and 1918 for inducing artificial pneumothorax — which

192-417: A magneto-electric motor, a modified Bohnenberger electrometer and an electrostatic generator . This massive collection were further expanded by his successors, Giovanni Cantoni and others who followed after him. The exhibit is divided into the following thematic collections — electrical , optics , pneumatics , thermology , mechanics and geodesy . Some of these instruments include solar microscope,

256-450: A telescope ) devices as well as two devices which represent measurements of a meter and a kilogram . This section hosts a number of instruments used by Volta's successors while occupying the Physics chair. There are more than 600 instruments, some of them are unique. Giuseppe Belli added many instruments to the collection, many were his own, including an electrostatic induction generator ,

320-735: A Chair (all of whom are Fellows of the Royal Society ). Members of the 10 Sectional Committees change every three years to mitigate in-group bias . Each Sectional Committee covers different specialist areas including: New Fellows are admitted to the Society at a formal admissions day ceremony held annually in July, when they sign the Charter Book and the Obligation which reads: "We who have hereunto subscribed, do hereby promise, that we will endeavour to promote

384-444: A collection of anatomical and histological specimens, as well as instruments used by anatomists who have taught in the university on shelves built by Scarpa himself in the 18th century. This section mainly displays memorabilia related to Luigi Porta and his works in the university. Specimens, handwritten documents and drawings related to his work on the pathological changes in the arteries after ligation or compressions —which became

448-451: A device to study gas expansions. At the centre of the room, there's a display of mechanical and pneumatic instruments which belonged to Ugo Foscolo high school in Pavia — instruments for studying motion on an inclined plane and elastic shocks, pulleys , pumps , fountain and a device for the study of air resistance. These instruments were purchased or created by Volta, which were transferred in

512-423: A form of saltwater brine . The electrolyte exists in the form 2 H and SO 2− 4 . Zinc metal, which is higher in the electrochemical series than both copper and hydrogen, is oxidized to zinc cations (Zn) and creates electrons that move to the copper electrode. The positively charged hydrogen ions ( protons ) capture electrons from the copper electrode, forming bubbles of hydrogen gas, H 2 . This makes

576-487: A frog's leg and to one another. Volta realised that the frog's leg served as both a conductor of electricity (what we would now call an electrolyte ) and as a detector of electricity. He also understood that the frog's legs were irrelevant to the electric current , which was caused by the two differing metals. He replaced the frog's leg with brine-soaked paper and detected the flow of electricity by other means familiar to him from his previous studies. In this way, he discovered

640-465: A given object, they are proportional. This is called Volta's Law of Capacitance, and for this work, the unit of electrical potential has been named the volt. In 1779, he became a professor of experimental physics at the University of Pavia , a chair that he occupied for almost 40 years. Volta's lectures were so crowded with students that the subsequent emperor Joseph II ordered the construction (based on

704-661: A project by Leopold Pollack ) of a new "physical theatre", today the "Aula Volta". Furthermore, the emperor granted Volta substantial funding to equip the physics cabinet with instruments, purchased by Volta in England and France. At the University History Museum of the University of Pavia there are 150 of them, used by Alessandro Volta. Luigi Galvani , an Italian physicist, discovered something he named "animal electricity" when two different metals were connected in series with

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768-437: A sketch of his voltaic pile. In late 2017, Nvidia announced a new workstation-focused GPU microarchitecture called Volta . The electric eel species Electrophorus voltai , described in 2019 and the strongest bioelectricity producer in nature, was named after Volta. Volta was raised as a Catholic and for all of his life continued to maintain his belief. Because he was not ordained a clergyman as his family expected, he

832-571: A town in northern Italy , on 18 February 1745. His father, Filippo Volta, was of noble lineage. His mother, Donna Maddalena, came from the family of the Inzaghis. In 1794, Volta married an aristocratic lady also from Como, Teresa Peregrini, with whom he raised three sons: Zanino, Flaminio, and Luigi. In 1774, he became a professor of physics at the Royal School in Como. A year later, he improved and popularised

896-601: Is celebrated by the Tempio Voltiano memorial located in the public gardens by the lake. There is also a museum that was built in his honour, which exhibits some of the equipment that Volta used to conduct experiments. Nearby stands the Villa Olmo , which houses the Voltian Foundation, an organization promoting scientific activities. Volta carried out his experimental studies and produced his first inventions near Como. In

960-725: Is confirmed by the Council in April, and a secret ballot of Fellows is held at a meeting in May. A candidate is elected if they secure two-thirds of votes of those Fellows voting. An indicative allocation of 18 Fellowships can be allocated to candidates from Physical Sciences and Biological Sciences; and up to 10 from Applied Sciences, Human Sciences and Joint Physical and Biological Sciences. A further maximum of six can be 'Honorary', 'General' or 'Royal' Fellows. Nominations for Fellowship are peer reviewed by Sectional Committees, each with at least 12 members and

1024-421: Is nominated by two Fellows of the Royal Society (a proposer and a seconder), who sign a certificate of proposal. Previously, nominations required at least five fellows to support each nomination by the proposer, which was criticised for supposedly establishing an old boy network and elitist gentlemen's club . The certificate of election (see for example ) includes a statement of the principal grounds on which

1088-520: The Old Campus of the University of Pavia , there is the classroom (Aula Volta) commissioned by Emperor Joseph II to Leopoldo Pollack in 1787 for the lectures of Alessandro Volta, while in the University History Museum there are many scientific instruments that belonged to Volta and his chair and his blackboard. His image was depicted on the Italian Lire ;10,000 note (1990–1997) along with

1152-419: The University of Pavia . Two work tables, which he used, host numerous instruments he used to investigate the properties of an electrical charge — electrophores , gold-leaf electroscope , condensing electroscope , electrometers , conductors and capacitors in various sizes and shapes. The collection also includes several Leyden jars , Nairne's electrostatic generator , eudiometers , Volta's pistol and

1216-662: The chemistry of gases. He researched and discovered methane after reading a paper by Benjamin Franklin of the United States on "flammable air". In November 1776, he found methane in the marshes of Angera on Lake Maggiore , and by 1778 he managed to isolate it. He devised experiments such as the ignition of methane by an electric spark in a closed vessel. Volta also studied what we now call electrical capacitance , developing separate means to study both electrical potential difference ( V ) and charge ( Q ), and discovering that for

1280-426: The electrochemical series , and the law that the electromotive force (emf) of a galvanic cell , consisting of a pair of metal electrodes separated by electrolyte, is the difference between their two electrode potentials (thus, two identical electrodes and a common electrolyte give zero net emf). This may be called Volta's Law of the electrochemical series. In 1800, as the result of a professional disagreement over

1344-454: The electrophorus , a device that produced static electricity . His promotion of it was so extensive that he is often credited with its invention, even though a machine operating on the same principle was described in 1762 by the Swedish experimenter Johan Wilcke . In 1777, he travelled through Switzerland, where he befriended H. B. de Saussure . In the years between 1776 and 1778, Volta studied

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1408-426: The post-nominal letters FRS . Every year, fellows elect up to ten new foreign members. Like fellows, foreign members are elected for life through peer review on the basis of excellence in science. As of 2016 , there are around 165 foreign members, who are entitled to use the post-nominal ForMemRS . Honorary Fellowship is an honorary academic title awarded to candidates who have given distinguished service to

1472-641: The Gospel, may it produce some good fruit! Foreign Member of the Royal Society Fellowship of the Royal Society ( FRS , ForMemRS and HonFRS ) is an award granted by the Fellows of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural knowledge , including mathematics , engineering science , and medical science ". Fellowship of

1536-439: The Royal Society has been described by The Guardian as "the equivalent of a lifetime achievement Oscar " with several institutions celebrating their announcement each year. Up to 60 new Fellows (FRS), honorary (HonFRS) and foreign members (ForMemRS) are elected annually in late April or early May, from a pool of around 700 proposed candidates each year. New Fellows can only be nominated by existing Fellows for one of

1600-1344: The Society, the oldest known scientific academy in continuous existence, is a significant honour. It has been awarded to many eminent scientists throughout history, including Isaac Newton (1672), Benjamin Franklin (1756), Charles Babbage (1816), Michael Faraday (1824), Charles Darwin (1839), Ernest Rutherford (1903), Srinivasa Ramanujan (1918), Jagadish Chandra Bose (1920), Albert Einstein (1921), Paul Dirac (1930), Winston Churchill (1941), Subrahmanyan Chandrasekhar (1944), Prasanta Chandra Mahalanobis (1945), Dorothy Hodgkin (1947), Alan Turing (1951), Lise Meitner (1955), Satyendra Nath Bose (1958), and Francis Crick (1959). More recently, fellowship has been awarded to Stephen Hawking (1974), David Attenborough (1983), Tim Hunt (1991), Elizabeth Blackburn (1992), Raghunath Mashelkar (1998), Tim Berners-Lee (2001), Venki Ramakrishnan (2003), Atta-ur-Rahman (2006), Andre Geim (2007), Bai Chunli (2014), James Dyson (2015), Ajay Kumar Sood (2015), Subhash Khot (2017), Elon Musk (2018), Elaine Fuchs (2019) and around 8,000 others in total, including over 280 Nobel Laureates since 1900. As of October 2018 , there are approximately 1,689 living Fellows, Foreign and Honorary Members, of whom 85 are Nobel Laureates. Fellowship of

1664-655: The Society, we shall be free from this Obligation for the future". Since 2014, portraits of Fellows at the admissions ceremony have been published without copyright restrictions in Wikimedia Commons under a more permissive Creative Commons license which allows wider re-use. In addition to the main fellowships of the Royal Society (FRS, ForMemRS & HonFRS), other fellowships are available which are applied for by individuals, rather than through election. These fellowships are research grant awards and holders are known as Royal Society Research Fellows . In addition to

1728-494: The anatomy of inguinal hernia . The anatomical preparations and drawings prepared for demonstration of nasopalatine and olfactory nerves were exhibited at International Congress of Anatomy in Paris in 1781. There are a number of anatomical and histological samples, most of which were dissected during autopsy and prepared by Antonio Scarpa and his pupils. These samples were taken from patients who died at Policlinico San Matteo at

1792-431: The aneurysm that killed mathematician Vincenzo Brunacci in 1818 and the bladder of naturalist Lazzaro Spallanzani , who died of kidney cancer in 1799. Scarpa's chair and ivory surgical dissection instruments donated by Joseph II in 1786 are also part of the museum's collection. Other memorabilia include a number of fetal skeletons from post-natal deaths as well drawings, histological samples by Bartolomeo Panizza and

1856-463: The award of Fellowship (FRS, HonFRS & ForMemRS) and the Research Fellowships described above, several other awards, lectures and medals of the Royal Society are also given. University History Museum, University of Pavia The University History Museum of the University of Pavia ( Italian : Museo per la Storia dell'Università ) is a museum displaying memorabilia related to

1920-465: The botanical garden), Pasquale Massacra (painter), Antonio Bordoni (mathematician) a reproduction cast of the skulls belonging to Ugo Foscolo , Francesco Petrarca , Gian Galeazzo Visconti as well as a plaster cast of Alessandro Volta's unusually large skull. The collection also includes Antonio Scarpa's dismembered head, both his kidneys and four of his fingers with blackened nails, all meticulously preserved. Other anatomical samples include

1984-597: The cause of science, but do not have the kind of scientific achievements required of Fellows or Foreign Members. Honorary Fellows include the World Health Organization's Director-General Tedros Adhanom Ghebreyesus (2022), Bill Bryson (2013), Melvyn Bragg (2010), Robin Saxby (2015), David Sainsbury, Baron Sainsbury of Turville (2008), Onora O'Neill (2007), John Maddox (2000), Patrick Moore (2001) and Lisa Jardine (2015). Honorary Fellows are entitled to use

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2048-532: The collection or were lost in removals over the years, the last of which was due to the Second World War . The remaining 1,000 pieces were now kept in this section. This section is divided into two rooms — Gabinetto di Volta, which was inaugurated on March 20, 1999 during the bicentennial celebration of the collection, and Gabinetto di Fisica dell'Ottocento. The section hosts a number of collections of instruments used by Alessandro Volta during his tenure in

2112-499: The development of the field of electrochemistry . Volta drew admiration from Napoleon Bonaparte for his invention, and was invited to the Institute of France to demonstrate his invention to the members of the institute. Throughout his life, Volta enjoyed a certain amount of closeness with the emperor who conferred upon him numerous honours. Volta held the chair of experimental physics at the University of Pavia for nearly 40 years and

2176-589: The doubts which at times arise. I studied attentively the grounds and basis of religion, the works of apologists and assailants, the reasons for and against, and I can say that the result of such study is to clothe religion with such a degree of probability, even for the merely natural reason, that every spirit unperverted by sin and passion, every naturally noble spirit must love and accept it. May this confession which has been asked from me and which I willingly give, written and subscribed by my own hand, with authority to show it to whomsoever you will, for I am not ashamed of

2240-663: The electrolyte solution. In 1809, Volta became an associated member of the Royal Institute of the Netherlands . In honour of his work, Volta was made a count by Napoleon Bonaparte in 1810. Volta retired in 1819 to his estate in Camnago, a frazione of Como, Italy , now named "Camnago Volta" in his honour. He died there on 5 March 1827, just after his 82nd birthday. Volta's remains were buried in Camnago Volta. Volta's legacy

2304-515: The fellowships described below: Every year, up to 52 new fellows are elected from the United Kingdom, the rest of the Commonwealth of Nations , and Ireland, which make up around 90% of the society. Each candidate is considered on their merits and can be proposed from any sector of the scientific community. Fellows are elected for life on the basis of excellence in science and are entitled to use

2368-458: The galvanic response advocated by Galvani, Volta invented the voltaic pile , an early electric battery , which produced a steady electric current. Volta had determined that the most effective pair of dissimilar metals to produce electricity was zinc and copper . Initially, he experimented with individual cells in series, each cell being a wine goblet filled with brine into which the two dissimilar electrodes were dipped. The voltaic pile replaced

2432-418: The goblets with cardboard soaked in brine. In announcing his discovery of the voltaic pile, Volta paid tribute to the influences of William Nicholson , Tiberius Cavallo , and Abraham Bennet . The battery made by Volta is credited as one of the first electrochemical cells. It consists of two electrodes: one made of zinc , the other of copper . The electrolyte is either sulfuric acid mixed with water or

2496-530: The good of the Royal Society of London for Improving Natural Knowledge, and to pursue the ends for which the same was founded; that we will carry out, as far as we are able, those actions requested of us in the name of the Council; and that we will observe the Statutes and Standing Orders of the said Society. Provided that, whensoever any of us shall signify to the President under our hands, that we desire to withdraw from

2560-405: The history of the university — are displayed on rotation or by request. The museum is divided into two sections: The origin of the physics collection dates back to the old Physics Laboratory, founded in 1771 during the reformation by Maria Theresa . The Physics Theater (now Aula Volta) and a tower for meteorological observations were subsequently annexed to the museum. In 1778, Alessandro Volta

2624-606: The history of the university, particularly in the fields of physics and medicine, when students were taught by prominent scholars such as Antonio Scarpa and Camillo Golgi or the physicist Alessandro Volta . The museum was founded in 1936 and is currently located at Palazzo Centrale . It currently forms the University of Pavia museum network, along with five other museums — the Natural History Museum , Museum of Electrical Technology , Museum of Archeology , Museum Camillo Golgi and Museum of Mineralogy . The origin of

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2688-403: The medical instruments used by Edoardo Porro to perform his first hysterectomy on 21 May 1876 and the anatomical specimens of the parts which he had removed. This section mainly contains memorabilia related to Antonio Scarpa and his work in the university. This collection contains many of his printed publications such as those of the inner ear , nerves of the heart , olfactory nerve and

2752-400: The middle of the 19th century to the high school during the reformation of the scholastic system. The collection also includes electrology ( Lane and Leyden jars , magnets and dry cells ), mechanical and thermological ( precision hydrometer , Laplace and Lavoisier calorimeters , thermometers and barometers , a Newton tube), optical ( mirrors , lenses , prisms , microscopes and

2816-636: The museum could be traced back to the end of the 18th century during the age of enlightenment era, when empress Maria Theresa of Austria ordered the reformation of the university teachings and structures. A Teaching Plan ( Italian : Piano Didattico ) and a Scientific Plan ( Italian : Piano Scientifico ) were approved by the Magistrate of the General Studies in 1771 and 1773, respectively. These plans regulated students' access to faculties and encouraged initiatives to invite prominent scholars to teach in

2880-415: The origin of vascular surgery, are part of this collection. Specimens of vessels and ligatures, as well as more than 800 pathology cards are also on display. Other memorabilia include a series of skulls specimens which Luigi Porta performed his rhinoplasty experiments on during the 1840s. This section mainly contains memorabilia related to Camillo Golgi and his work in the university. Among them are

2944-679: The original certificate of his Nobel Prize for Medicine in 1906, the microscopy slides from his infamous black reaction which allowed visualization of neurons for the first time and the two microscopes which he used to study them. Other memorabilia of interest include handwritten documents and illustrations of cells , kidneys , his studies on malaria as well as some manuscripts and notes which he used for his general pathology lectures. The collection also includes other documents and manuscripts related to Adelchi Negri's discovery of rabies and Carlo Forlanini's instruments for inducing artificial pneumothorax . This section also displays

3008-509: The post nominal letters HonFRS . Statute 12 is a legacy mechanism for electing members before official honorary membership existed in 1997. Fellows elected under statute 12 include David Attenborough (1983) and John Palmer, 4th Earl of Selborne (1991). The Council of the Royal Society can recommend members of the British royal family for election as Royal Fellow of the Royal Society . As of 2023 there are four royal fellows: Elizabeth II

3072-546: The proposal is being made. There is no limit on the number of nominations made each year. In 2015, there were 654 candidates for election as Fellows and 106 candidates for Foreign Membership. The Council of the Royal Society oversees the selection process and appoints 10 subject area committees, known as Sectional Committees, to recommend the strongest candidates for election to the Fellowship. The final list of up to 52 Fellowship candidates and up to 10 Foreign Membership candidates

3136-429: The results of his experiments in a two-part letter to the president of the Royal Society , which was published in 1800. With this invention, Volta proved that electricity could be generated chemically and debunked the prevalent theory that electricity was generated solely by living beings. Volta's invention sparked a great amount of scientific excitement and led others to conduct similar experiments, which eventually led to

3200-434: The time. Each sample represented certain diseases and helped develop our understanding of physiology , the study of the function of the human body. This section also displays two anatomical wax models , which were sculpted by Clemente Susini which was modelled after Felice Fontana's dissections, as well as a collection of skulls from people such as Giovanni Gorini (a math professor), Giuseppe Moretti (director of

3264-451: The university. For this purpose, new structures were created — library, anatomical theater, physics theater, natural history museum, chemistry laboratory, botanical garden and cabinets anatomy and experimental physics. In 1783, when Antonio Scarpa took up his chair in Pavia , he ordered a construction of a modern anatomy theatre where performed dissections could be witnessed by others. The museum

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3328-401: The zinc anode to compensate for the charge of the zinc cations formed there. However, this cell also has some disadvantages. It is unsafe to handle, since sulfuric acid, even if diluted, can be hazardous. Also, the power of the cell diminishes over time because the hydrogen gas is not released. Instead, it accumulates on the surface of the copper electrode and forms a barrier between the metal and

3392-475: The zinc rod the negative electrode and the copper rod the positive electrode. Thus, there are two terminals, and an electric current will flow if they are connected. The chemical reactions in this voltaic cell are as follows: Copper metal does not react, but rather it functions as a catalyst for the hydrogen-gas formation and an electrode for the electric current. The sulfate anion ( SO 2− 4 ) does not undergo any chemical reaction either, but migrates to

3456-524: Was appointed as a professor of Experimental Physics and he had been slowly adding numerous instruments purchased during his European travels to the collection. He also added instruments which he had conceived and created with the help of skilled artisans. Many tools were used by Volta during public exhibitions, held twice a week from December to June. In addition to the students (whom he taught daily), numerous spectators (...usually more than 200, according to his writing, Opere, Appendice XXII). The collection

3520-497: Was born and brought up, and of which I have always made confession, externally and internally. I have, indeed, and only too often, failed in the performance of those good works which are the mark of a Catholic Christian, and I have been guilty of many sins: but through the special mercy of God I have never, as far as I know, wavered in my faith... In this faith I recognise a pure gift of God, a supernatural grace; but I have not neglected those human means which confirm belief, and overthrow

3584-400: Was enriched by Giuseppe Belli (museum director from 1842 to 1860) with his own instruments, and by Giovanni Cantoni (museum from 1860 to 1893). An inventory drawn up shortly after his death described more than 2,000 pieces of instruments. Unfortunately, some of these instruments were either destroyed in the fire at the exhibition pavilion in 1899 at Como , during the centennial celebration of

3648-462: Was moved to Palazzo Botta Adorno in 1902. The current museum was officially opened in 1936 and gradually expanded over the years, thanks to donations from the heirs of Golgi , which included his manuscripts, notes for lectures and especially, the original certificate of the Nobel Prize he won in 1906. During the war, the museum was closed in order to keep the collections safe, but after 1945, it

3712-421: Was not a Royal Fellow, but provided her patronage to the society, as all reigning British monarchs have done since Charles II of England . Prince Philip, Duke of Edinburgh (1951) was elected under statute 12, not as a Royal Fellow. The election of new fellows is announced annually in May, after their nomination and a period of peer-reviewed selection. Each candidate for Fellowship or Foreign Membership

3776-535: Was organized by Antonio Pensa , president of the Fourth National Congress of Anatomy and Professor of Human Anatomy at the University of Pavia. It revolved around the collection of items from Antonio Scarpa — autographs and writings, anatomical preparations by Scarpa and other anatomists as Giacomo Rezia and Bartolomeo Panizza , which were preserved in the Anatomical Museum for a century until it

3840-530: Was reopened and new items were continued to be added to its collections. In addition to anatomical preparations, physics and surgical instruments as well as documents related to the history of the university, the museum also has many memorabilia which are not normally shown to the public due to space constraints. These items — documents and writings such as the autographs of Volta , Foscolo , Monti , Spallanzani , Moscati , Golgi , Oehl , Brugnatelli , Romagnosi , Cairoli and many others who had contributed to

3904-611: Was set up next to this theatre. In 1929, after an exhibition in Florence which displayed some artifacts from the university's collection, the university decided to open its own museum of history. In 1932, the museum was founded to accommodate the items which were kept in the Palazzo Botta Adorno , on the exhibition on the first anniversary of the death of Antonio Scarpa , founder of the Anatomical School of Pavia. The exhibition

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3968-547: Was sometimes accused of being irreligious and some people have speculated about his possible unbelief, stressing that "he did not join the Church", or that he virtually "ignored the church's call". Nevertheless, he cast out doubts in a declaration of faith in which he said: I do not understand how anyone can doubt the sincerity and constancy of my attachment to the religion which I profess, the Roman, Catholic and Apostolic religion in which I

4032-513: Was the first successful cure for tuberculosis . The medical section is divided into three rooms named after distinguished medical scholars who taught in Pavia — anatomist Antonio Scarpa , pathologist and surgeon Luigi Porta and histologist and pathologist Camillo Golgi . These memorabilia were a part of Cabinet Anatomy which was hosted by the old Anatomical Museum. The collection was started by Giacomo Rezia , then by Antonio Scarpa , Bartolomeo Panizza and Giovani Zoja . This section hosts

4096-454: Was widely idolised by his students. Despite his professional success, Volta was inclined towards domestic life and this was more apparent in his later years when he tended to live secluded from public life and more for the sake of his family. He died in 1827 from a series of illnesses which began in 1823. The SI unit of electric potential is named the volt in his honour. Volta was born in Como ,

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