Showing posts with label Academics. Show all posts
Showing posts with label Academics. Show all posts

9 March 2023

Andrew Viterbi – electrical engineer and businessman

The amazing life of 'the father of the mobile telephone'

Even at the age of 88, Viterbi remains actively involved in the scientific community
Even at the age of 88, Viterbi remains actively
involved in the scientific community
Andrew Viterbi, who invented the Viterbi algorithm and co-founded the American multinational corporation Qualcomm, was born Andrea Giacomo Viterbi on this day in 1935 in Bergamo in the Lombardy region of Italy.

The Viterbi algorithm is still used widely in cellular phones and other communication devices for error correcting codes as well as for speech recognition, DNA analysis and other applications. Viterbi also helped to develop the Code Division Multiple Access standard for cell phone networks.

He is recognised in Italy as ‘il padre del telefonino’ - the father of the mobile telephone.

Viterbi’s father, Achille, was director of Bergamo Hospital’s ophthalmology department, and his mother, Maria Luria, came from a prominent family in Piedmont and had a teaching degree. But after Mussolini introduced his new racial laws in Italy before the start of World War II, the couple, who were both Jewish, were deprived of their position and could no longer make a living to support their family.

They had planned to sail to the United States on 1 September, 1939, but after receiving a tip-off alerting them to possible danger, they secretly escaped two weeks early and were able to land safely in New York, where a member of their extended family already lived.   They then moved to Boston, where Andrea’s name was anglicised as Andrew after he was naturalised as an American.

Andrew Viterbi pictured in 2005 with his late wife, Erna, who assisted him in his philanthropic causes
Andrew Viterbi pictured in 2005 with his late wife,
Erna, who assisted him in his philanthropic causes
As Andrew Viterbi, he attended the Boston Latin School and entered Massachusetts Institute of Technology in 1952 to study electrical engineering. After qualifying, he worked at Raytheon and then the Jet Propulsion Laboratory at Pasadena, where he worked on telemetry for unmanned space missions and helped to develop the ‘phase-locked loop.’ At the same time, he was studying for a PhD in digital communications at the University of Southern California and graduated from there in 1963.

He was awarded academic positions at the University of California and, in 1967, he proposed the Viterbi algorithm to decode convolutionally encoded data, a ground breaking mathematical formula for eliminating signal interference. This allowed for effective cellular communication, digital satellite broadcast receivers, and deep space telemetry.

With Irwin Jacobs, Viterbi was the co-founder of Linkabit Corporation in 1968, and Qualcomm Inc in 1985, which became one of the most important communications companies worldwide. He became president of the venture capital company, The Viterbi Group in 2003, which invests in emerging businesses that are pioneering innovative technologies in the area of wireless communications.

Viterbi has received many awards for his invention of the Viterbi algorithm and a computer centre and an engineering school have been named after him. His algorithm paved the way for the widespread use of cellular technology, which changed the way people communicate worldwide.

In 2003 he was awarded an honorary degree in computer science by La Sapienza University of Rome and in 2007 an honorary degree in electrical engineering by the University in his native city of Bergamo. He has written two internationally respected books about digital communications and coding.

Viterbi in 1958 married Erna Finci, a Jewish refugee who had arrived in the United States from Sarajevo in the former Yugoslavia. Her family had been deported from an Italian occupied zone in Sarajevo to Parma in Italy, where they were interned. They were saved from being sent to an extermination camp by the residents of Gramignazzo di Sissa, the village when they were interned, and were looked after by a local family when the Germans advanced into Italy, who hid them in their vineyard. Other Italians helped them to walk across the Alps into Switzerland, where they stayed until after the war.

The couple had three children. Erna, who helped organise Viterbi’s multiple acts of philanthropy, died in 2015. Their charitable donations included $52 million to the University of Southern California, where the engineering school was renamed the Andrew and Erna Viterbi School of Engineering. 

Bergamo's Città Alta is protected by an imposing wall built by the Venetians
Bergamo's Città Alta is protected by an
imposing wall built by the Venetians
Travel tip:

Bergamo in Lombardy is a beautiful city with an upper and lower town that are separated by impressive fortifications. The magical upper town - the Città Alta - has gems of mediaeval and Renaissance architecture surrounded by the impressive 16th century walls, which were built by the Venetians who ruled at the time. Outside the walls, the elegant Città Bassa, which grew up on the plain below, has some buildings that date back to the 15th century as well as imposing architecture added in the 19th and 20th centuries. While the Città Alta is the draw for many tourists, the lower town also has art galleries, churches and theatres and a wealth of good restaurants and smart shops to enjoy.

The Rocca dei Terzi with its 89ft central tower
The Rocca dei Terzi with its
89ft central tower
Travel tip:

Gramignazzo, the village near Parma where Viterbi’s future wife, Erna, was saved with her family from being shipped to a Nazi extermination camp, is a frazione of the municipality of Sissa, in farming country on the south bank of the Po river in Emilia Romagna. Sissa has a restored castle, the Rocca dei Terzi, which dates back to the 11th century and is notable for a 27-metre (89ft) tower added in the 16th century. The village is host every November to a festival known as the Sapori del Maiale, celebrating products made from pork, including many varieties of sausage and salami as well as roast pork dishes such as porchetta, typically made of rolled loin or belly pork stuffed with herbs.



Also on this day:

1454: The death of explorer Amerigo Vespucci

1809: The birth of statesman and winemaker Bettino Ricasoli

1842: The premiere of Giuseppe Verdi’s Nabucco

1908: The founding of football club Internazionale

1948: The birth of politician Emma Bonino


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2 February 2023

Vittorino da Feltre – humanist and educator

Teacher to the nobility provided free education for poor children

Vittorino da Feltre treated his  pupils as equal, wealthy or poor
Vittorino da Feltre treated his 
pupils as equal, wealthy or poor
A scholar considered to have been the greatest humanist schoolmaster of the Renaissance, Vittorino da Feltre, died on this day in 1446 in Mantua in the Lombardy region.

Da Feltre, who was originally named Vittore dei Ramboldini when he was born in Feltre in the republic of Venice in 1378, is thought to have established the first boarding school in Europe, a place of learning where the pupils enjoyed their lessons so much that it became known as La Casa Gioiosa - The House of Joy.

After studying and then teaching at the University of Padua, Da Feltre chose to settle in Padua and became a successful teacher, welcoming pupils into his own home, varying his fee according to the financial situation of the pupil’s family. He himself had come from a noble family that had become impoverished and his own early education had been difficult, but this had contributed to making him a strong and decisive character. He had also benefited from free tuition at the University of Padua.

In 1423, he was asked to become tutor to the children of the powerful Gonzaga family, who ruled over Mantua. He agreed to do this providing he could set up his own school away from the Gonzaga court and its political influence.

He also enrolled other children to be taught at the school along with the Gonzaga children, both noble and poor children, who were selected because of their ability. The poor children did not have to pay for their education and were taught on an equal footing with the children from wealthy families. He also educated girls and did not consider the female pupils to be inferior to the male pupils.

Palazzo Bo, the main building of the University of Padua
Palazzo Bo, the main building
of the University of Padua
Latin and Greek language and literature were at the centre of the curriculum of the school. The children were also taught arithmetic, geometry and music and did games and physical exercise, following the Greek ideal of development of the body as well as of the mind. The school was close to a lake and surrounded by beautiful countryside, which also contributed to the wellbeing of the pupils.

Da Feltre saw education as a pathway to living a Christian life and made his pupils feel loved and cared for in terms of their health and characters. He adapted his teaching methods to their individual abilities and needs and never used corporal punishment. Among his students were Federico da Montefeltro, who became Duke of Urbino, and Gregorio Correr, who became Patriarch of Venice.

One of the first modern educators to develop during the Renaissance, Da Feltre’s teaching methods were therefore innovative and many other schools in Europe were to adopt his educational model.

During his career, Da Feltre not only educated future Italian rulers and professional men but also taught Latin and Greek scholars who came to him from the east. This paved the way for the translation of the Greek manuscripts that were to inspire the Renaissance in Europe.

After Da Feltre’s death at the age of 68 in Mantua, Iacopo da San Cassiano, a humanist and mathematician who had been one of his pupils, took over the running of the school and inherited his library. Da Feltre was laid to rest in the Chiesa di Santo Spirito in Mantua.

Feltre School in Chicago, a private non-profit school, educates adults in English grammar, composition, public speaking, philosophy and the humanities. The name and philosophy of the school, which was founded in 1992, was inspired by the work of Vittorino da Feltre.

The town of Feltre, where Da Feltre was born, sits on a hill 20km from Belluno
The town of Feltre, where Da Feltre was
born, sits on a hill 20km from Belluno
Travel tip:

Feltre, where Vittorino da Feltre was born and from which he took his name, is a town in the province of Belluno in the Veneto. It is located 20 kilometres (12 miles) southwest of Belluno and there is a view of the Dolomites from the north of the town. The Cathedral, which was rebuilt during the Renaissance, has retained its 14th century campanile. It is flanked by a 15th century baptistery, which houses a precious, medieval baptismal font. There is an excavated archaeological area under the Cathedral revealing part of the Roman layout of the city. There is a statue of Vittorino in the main square, Piazza Maggiore.

The Palazzo Ducale was the seat of the Gonzaga family, rulers of Mantua
The Palazzo Ducale was the seat of the
Gonzaga family, rulers of Mantua
Travel tip:

Mantua, where Da Feltre worked, died and is buried, is an atmospheric ancient city in Lombardy, to the south east of Milan. It is famous for its Renaissance Palazzo Ducale, the seat of Da Feltre’s employers, the Gonzaga family, between 1328 and 1707. The palace is famous for its Camera degli Sposi, which is decorated with frescoes by Andrea Mantegna, depicting the life of Ludovico Gonzaga and his family. The beautiful backgrounds of imaginary cities and ruins are a reflection of Mantegna’s love of classical architecture.




Also on this day: 






16 May 2020

Maria Gaetana Agnesi – mathematician

Brilliant scholar gave her time and money to the poor


Maria Gaetana Agnesi learned seven languages by the age of 11
Maria Gaetana Agnesi learned
seven languages by the age of 11
Maria Gaetana Agnesi, the first woman to write a mathematics handbook, was born on this day in 1718 in Milan.

Maria became a mathematician, philosopher, theologian and humanitarian and was also the first woman to be appointed as a mathematics professor at a university.

She was one of at least 21 children born to Pietro Agnesi, a wealthy man whose family had made their money from silk production. Her mother was his first wife, Anna Fortunato Brivio, who was from a noble Milanese family.

Maria was soon recognised as a child prodigy, who could speak Italian and French by the time she was five and had learnt Greek, Hebrew, Spanish, German and Latin by the time she was 11.

When she became ill at the age of 12, it was thought to have been because of excessive studying and reading, but after she was prescribed vigorous dancing and horse riding to improve her health, she suffered convulsions and was then advised to moderate her activities.

By the time Maria was 14 she was studying ballistics and geometry. Her father regularly invited learned men to his house to listen to her read and to discuss philosophical questions with her.

The cover page of Agnesi's Instituzioni  analitiche ad uso della gioventu italiana
The cover page of Agnesi's Instituzioni
 analitiche ad uso della gioventu italiana
After Maria’s mother died, her father remarried twice and Maria was given the task of teaching all her siblings and half-siblings.

This stopped her from fulfilling her wish to enter a convent.  Instead, her father agreed to let her live away from society and devote herself to the study of mathematics.

In 1740 she began studying differential and integral calculus with esteemed Italian mathematician Ramiro Rampinelli.

By 1748 Maria had published her Instituzioni analitiche ad uso della gioventù italiana. She said this was to give a systematic illustration of the different results and theorems of infinitesimal calculus. The work was translated into French and English and Maria received letters and gifts from the Habsburg Empress Maria Theresa and Pope Benedict XIV.

In the book, Maria discusses a curve that had been studied earlier by the mathematician Luigi Guido Grandi. He had called the curve ‘versoria,’ the Latin word for a rope that turns a sail, because that is what it reminded him of.  This was mistranslated as the word ‘witch’ in the English version and so the curve became known as ‘The Witch of Agnesi’.

The bust of Maria Gaetana Agnesi at the Palazzo di Brera in Milan
The bust of  Agnesi at the
Palazzo di Brera in Milan
In 1750 Pope Benedict XIV appointed Maria to the chair of mathematics and natural philosophy and physics at Bologna University, although she never actually taught there. She was the second woman in the world to be granted a professorship at a university, Laura Bassi, an Italian physicist being the first.

After the death of her father in 1752, Maria finally had the chance to study theology. She then worked with the poor, sick and homeless, founding a home for the elderly in Milan, where she went to live.

In January 1799, Maria Gaetana Agnesi died at the age of 80. She was buried in a mass grave for the poor along with 15 other bodies.

An asteroid, 16765 Agnesi, a crater on Venus and a brandy are all named after her, as well as the mathematical curve, the Witch of Agnesi.

The Villa Agnesi Albertoni at Montevecchia in the province of Lecco, where Maria and her family spent the summer
The Villa Agnesi Albertoni at Montevecchia in the province
of Lecco, where Maria and her family spent the summer
Travel tip:

You can visit the Villa Agnesi Albertoni, where Maria and her family spent time during the summer, which is in Largo Maria Gaetana Agnesi at Montevecchia in the province of Lecco, about 30 kilometres (19 miles) northeast of Milan. The villa has been preserved in the rococo style in which it was built during the 17th century. Visitors can still see the ‘salotto’, where eminent visitors would discuss philosophy with Maria Gaetana Agnesi and hear one of her sisters, Maria Teresa Agnesi play her own compositions on the harpsichord.

The famous Archiginnasio, the  university's anatomical theatre
The famous Archiginnasio, the
university's anatomical theatre
Travel tip:

Bologna University, where Maria Gaetana Agnesi was the first woman to be appointed as a mathematics professor, was founded in 1088, making it the oldest university in the world. It attracted popes and kings as well as students of the calibre of Dante, Copernicus and Boccaccio. You can still visit one of the original university buildings in the centre of Bologna, the former anatomy theatre, the Archiginnasio, in Piazza Galvani. It is open Monday to Saturday from 9 am to 1 pm, admission free.

Also on this day:

1915: The birth of film director Mario Monicelli

1945: The birth of business tycoon Massimo Moratti

1974: The birth of singer-songwriter Laura Pausini


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23 November 2015

Prospero Alpini - botanist

How coffee was first introduced to Europe


Prospero Alpini's journals suggest he saw coffee for the first time in Egypt
Prospero Alpini's journals suggest he saw
coffee for the first time in Egypt
Physician and botanist, Prospero Alpini, was born on this day in 1553 in Marostica near Vicenza.

He is credited with being the first person in Europe to observe and write about the coffee plant.

Alpini went to study medicine in Padua in 1574 and after taking his degree settled down to work as a doctor in nearby Campo San Pietro.

He was very interested in botany and so to extend his knowledge of exotic plants he travelled to Egypt in 1580 as physician to George Emo, the Venetian consul in Cairo.

While in Egypt he studied date trees which helped him to work out that there were gender differences between plants. He wrote that: “the female date trees or palms do not bear fruit unless the branches of the male and female plants are mixed together, or, as is generally done, unless the dust found in the male sheath or male flowers is sprinkled over the female flowers.”

In 1593 he was appointed professor of botany at Padua University and, after he died in 1617, he was succeeded in the role by his son, Alpino Alpini.

His botanical work De Medicina Egyptiorum is believed to contain the first report on the coffee plant ever published in the western world. 

Alpini also noted that the Egyptians roasted the seeds of the coffee plant, from which they made a drink. On his return to Venice, he told friends and associates about this drink. Curiously, the discovery of coffee beans was initially heralded for their medicinal qualities. They were sold in pharmacies at a very high cost, which put them out of reach of ordinary people. 

Alpini's illustration of the leaves of the coffee plant
Alpini's illustration of the leaves
of the coffee plant
But the habit of drinking coffee 
for pleasure spread quickly in Venice and several coffee houses were set up, the first of which was thought to have opened on Piazza San Marco in 1630, almost a hundred years before the famous Caffè Florian opened there in 1720. 

By the mid-18th century, Venetians could choose from more than 200 coffee houses across the city and other cities in Italy and beyond had taken up the coffee fashion.  Coffee houses, such as the Caffè Pedrocchi in Padua, which opened in the centre of the town in 1831, became the places to meet and be seen.

The new drink did not meet with universal approval, however. Some prominent members of the Catholic Church dubbed it 'the drink of the devil' and urged Pope Clement VII to ban its sale. In the event, on tasting coffee himself, the pontiff rejected the notion of banning it. Now with papal approval, the coffee habit went from strength to strength.

Alpini went on to work in Bassano del Grappa and then Genoa, where he was employed as personal physician to Giovanni Andrea Doria, an admiral and a member of a wealthy Genovese family. Later he took a job as prefect at the Botanical Gardens in Padua, becoming an authority on the medicinal use of plants.

The entrance archway of the Palazzo del Bò in Via 8 Febbraio in the centre of Padua
The entrance archway of the Palazzo del
Bò in Via 8 Febbraio in the centre of Padua
Travel tip:


The main building of Padua University, Palazzo del Bò in Via 8 Febbraio in the centre of Padua, was named after the tavern known as Il Bo (‘the ox’ in Venetian dialect) that had been acquired by the university as new premises in 1493. Originally this building housed the university’s renowned medical faculty, where Alpini would have studied. You can take a guided tour of the building and see the pulpit used by Galileo when he taught there between 1592 and 1610.  The anatomy theatre, built in 1594, is the oldest surviving medical lecture theatre in the world today. To find Palazzo del Bò, leave Piazza Cavour, passing Caffe Pedrocchi on your right and walk down Via 8 Febbraio. The university building is on the left hand side of the street at its corner with Via San Francesco.

The Piazza dei Signori in Vicenza, the city where Prospero Alpini was born in 1553
The Piazza dei Signori in Vicenza, the city where
Prospero Alpini was born in 1553
Travel tip:

Alpini was born near Vicenza, which has become famous as the city of Andrea Palladio, the most influential architect of his time, whose ideas have been copied by countless architects in the centuries since. Many of the palaces and buildings designed by Palladio in the centre of Vicenza would have been built during the time Alpini was growing up there, before he went to Padua University. A striking example of his work is the Basilica Palladiana in Piazza dei Signori. The most notable feature of the basilica is the loggia, which shows one of the first examples of what have come to be known as the Palladian window.