Evangelista Torricelli – inventor of the barometer

Physicist's name lives on in scientific terminology

Evangelista Torricelli: a portrait by
Lorenzo Lippi, shortly before he died

The inventor of the barometer, Evangelista Torricelli, died on this day in 1647 in Florence at the age of just 39.

A disciple of Galileo, Torricelli made many mathematical and scientific advances during his short life and had an asteroid and a crater on the moon named after him.

Torricelli was born into a poor family from Faenza in the province of Ravenna.

He was given a basic education in Faenza and then sent to a Jesuit college to study Mathematics and Philosophy.

He studied science under the Benedictine monk, Benedetto Castelli, a professor of Mathematics at the Collegio della Sapienza, now known as the Sapienza University of Rome, who had been a student of Galileo Galilei.

Torricelli also became an admirer of Galileo and, after the great scientist’s Dialogues of the New Science were published, Torricelli wrote to him telling him he had read it with ‘delight’.

Galileo was condemned by the Vatican in 1633 for his beliefs and held prisoner at his villa in Arcetri. For the last three months of Galileo’s life, Torricelli worked for him there as his secretary and assistant.

Early barometers based on
Torricelli's findings

After Galileo’s death the Grand Duke Ferdinand II de Medici asked Torricelli to succeed Galileo as Chair of Mathematics at the University of Pisa.

In this role Torricelli solved some of the great mathematical problems of the day and described his observations in his book, Opera Geometrica. His work contributed to the eventual development of integral calculus.

Torricelli was also interested in optics and designed and built telescopes and microscopes.

But his most important invention was the mercury barometer, which he produced after he had discovered the principle of the barometer while trying to find a solution to the limitations of the suction pump in forcing water upwards.

He designed a kind of vacuum pump using mercury. He filled a metre-long glass tube, closed at one end, with mercury and inverted the tube so that the open end rested on the bottom of a vessel containing more mercury.  The mercury in the tube fell until it reached the point at which the weight of the mercury in the tube was balanced against the pressure exerted by air on the mercury in the vessel, leaving a vacuum at the top of the tube.

The statue of Torricelli in Faenza

Torricelli noted that the height of the mercury in the column varied from day to day, which he concluded was due to changes in atmospheric pressure. In 1644, he turned these discoveries into the first instrument to measure atmospheric pressure.

Scientific terms such as the Torricellian tube and Torricellian vacuum are named after the scientist, as is the torr, a unit of pressure in vacuum measurements. Torricelli’s Law refers to the speed of a fluid flowing out of an opening and Torricelli’s Trumpet relates to mathematical discoveries he made about infinity.

Torricelli died in Florence ten days after his 39th birthday and was buried at the Basilica of San Lorenzo.

Several Italian submarines have been named after Torricelli in honour of his work.

Travel tip:

A statue of Torricelli was erected in 1868 in Faenza, the city where he was born and educated, in recognition of all he had done to advance science during his short lifetime. The white marble statue can be found in the park of San Francesco in Corso Giuseppe Garibaldi.

An example of faience majolica-ware

Travel tip:

Faenza is in the Emilia-Romagna region, about 50 kilometres south east of Bologna. The city is famous for the manufacture of a type of decorative majolica-ware known as faience. It is also home to the International Museum of Ceramics, which has examples of ceramics from ancient times, the Middle Ages and the 18th and 19th centuries as well as displaying work by important contemporary artists. The museum is in Viale Baccarini in Faenza. For more information visit www.micfaenza.org.

More reading:

Galileo Galilei - brilliant physicist known as the 'father of modern science'

How Cosimo II de Medici maintained family tradition by supporting Galileo

Vincenzo Viviani - brilliant mathematician who worked with Galileo and Torricelli

(Picture of faience plate by Rosco CC BY-SA 2.5)


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Tito Gobbi – baritone

Singer found fame on both stage and screen

Tito Gobbi, pictured in 1955

Opera singer Tito Gobbi was born on this day in 1913 in Bassano del Grappa in the Veneto region.

He had a career that lasted 44 years and sang more than 100 different operatic roles on stages all over the world.

Gobbi also sang in 25 films and towards the end of his career directed opera productions throughout Europe and America.

His singing talent was discovered by a family friend while he was studying law at the University of Padua, who suggested that he studied singing instead. As a result, Gobbi moved to Rome in 1932 to study under the tenor, Giulio Crimi.

At his first audition he was accompanied at the piano by Tilde De Rensis, the daughter of musicologist Raphael De Rensis. She was later to become Gobbi’s wife.

Gobbi made his debut in 1935 in Gubbio, singing the role of Count Rodolfo in Vincenzo Bellini’s La sonnambula, and then went to work for a season at La Scala in Milan as an understudy, which gained him valuable experience.

He made his first appearance on stage there as the Herald in Ildebrando Pizzetti’s Orseolo.

Listen to Tito Gobbi singing Di provenza il mar il suol from Verdi's La Traviata

In 1942 he sang the role of Belcore in Donizetti’s L’elisir d’amore at La Scala, conducted by Tullio Serafin.

Gobbi was guided by Serafin in preparing roles, which was to be invaluable later in his career when he was cast as Scarpia, Rigoletto and Simon Boccanegra.

The movie poster for the Italian version
of the British film The Glass Mountain

He began working in films as early as 1938 when he appeared in Cilea’s L’arlesiana with Licia Albanese.

After the Second World War, Gobbi’s international career took off and he sang at the Royal Opera House in Covent Garden, the Lyric Opera in Chicago and the San Francisco Opera house.

He made his debut at The Metropolitan Opera in New York as Scarpia in Tosca.

His screen appearances continued and he starred with Anna Magnani in a contemporary drama released in 1946, Avanti a lui tremava tutta Roma (Before Him All Rome Trembled), a story which sees a group of opera singers appearing in a production of Tosca in Rome in 1944 simultaneously taking part in Italian resistance actions against the Germans.

Gobbi's performance in 1949 in the British film, The Glass Mountain, which was set in wartime Italy, made him known to a much wider audience. The theme music, Legend of the Glass Mountain, which became a contemporary hit, was by the Italian composer Nino Rota.

Tito Gobbi pictured in London in 1973

In the 1960s, Gobbi began directing, staging Verdi’s Simon Boccanegra at both Covent Garden and in Chicago.

He directed Otello in California, Chicago and Thessalonika in Greece and Gianni Schicchi by Puccini in Florence, at the Edinburgh Festival, and in Chicago, Zurich and Monaco.

Gobbi estimated that he had sung the part of Scarpia in Puccini’s Tosca nearly a thousand times.

He sang it in Franco Zeffirelli’s production of the opera at Covent Garden in 1964, when Maria Callas sang the title role and Act Two was broadcast live on British television.

Gobbi and Callas had previously sung Tosca together in a 1953 recording of the Opera in Milan, when Giuseppe di Stefano sang Cavaradossi. That recording, which has been reissued on CD, is considered the finest recording of a complete opera ever made.

In retirement the singer wrote two books, Tito Gobbi: My Life  and Tito Gobbi on his World of Italian Opera. After retiring in 1979, Gobbi died in Rome in 1984 at the age of 70.

Palladio's Ponte degli Alpini in Bassano del Grappa

Travel Tip:

Bassano del Grappa, where Tito Gobbi was born, is an historic town at the foot of Monte Grappa in the Vicenza province of the Veneto, famous for inventing grappa, a spirit made from the grape skins and stalks left over from wine production, which is popular with Italians as an after dinner drink to aid digestion. A famous sight is the Ponte degli Alpini, a bridge designed by Andrea Palladio. The painter Jacopo Bassano was born in Bassano del Grappa and took his name from the town.

Travel tip:

Gubbio, where Tito Gobbi made his opera debut, is a town in the province of Perugia in Umbria, with some fine medieval architecture in the narrow streets in the centre. Gubbio is well-known for its annual foot race, Corsa dei Ceri, held on 15 May. Three teams, devoted to Sant’Ubaldo, San Giorgio and Sant’Antonio, run through the town and up the mountain carrying a statue of their saint mounted on a tall wooden stand. A similar event is held each year in Jessup, Pensylvania, when residents race statues of the three saints through the streets.

More reading:

Luciano Pavarotti - king of the high 'Cs'

How Tullio Serafin helped Maria Callas achieve her potential

Nino Rota - film music composer who wrote The Godfather soundtrack

(Photo of  Tito Gobbi in London by Allan Warren CC-BY SA 3.0)
(Photo of Bassano del Grappa by Zyance CC BY-SA 3.0)


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Saint John of Capistrano

Patron saint of lawyers and chaplains

St John of Capistrano as
depicted by the German-
Hungarian artist Karoly Lotz

The feast day of Saint John of Capistrano (San Giovanni da Capestrano) is being celebrated today in Abruzzo and is marked by Catholics in the rest of Italy and the world.

The patron saint of the legal profession and military chaplains, St John is particularly venerated in Austria, Hungary, Poland and Croatia as well as in different parts of America.

St John was born in Capestrano, about halfway between L’Aquila and Pescara in the Abruzzo region of Italy, in 1386.

He studied law at the University of Perugia and was then appointed Governor of Perugia by King Ladislaus of Naples.

When war broke out between Perugia and the Malatesta family in 1416, John was sent to broker peace, but ended up in prison.

While in captivity he decided not to consummate his recent marriage but to study theology instead.

He entered the Order of Friars Minor at Perugia in 1416 and a few years later began preaching all over Italy as a Franciscan friar.

He was particularly effective in Germany, Austria, Croatia and Poland and, because the churches were not big enough for his audiences, he had to preach in public squares.

St John's willingness to lead troops into
battle saw him dubbed 'the Soldier Priest'

Unhindered by such constraints as apply today, he preached against Jews, encouraging cities to expel their Jewish population, and wrote many tracts against heresy, while helping to reform the Franciscan Order.

At the age of 70, St John was sent by Pope Calixtus III to Germany to preach against the invading Turks. He moved on to Hungary and gathered together enough troops to march into Belgrade, which was under siege to the Turkish forces.

Although by then old and frail, St John managed to lead a contingent into battle, earning the nickname ‘The Soldier Priest’.

He survived the battle but fell victim to the Bubonic Plague and died on October 23, 1456 in Ilok in Croatia.

Nearly 200 years later, John was made a Saint and his feast day was fixed for March 28. But in 1969, Pope Paul VI moved his feast day to October 23, the day of his death. There are Catholic missions in California and Texas named after him and there is a statue of St John in Hungary and a monument to him in St Stephen’s Cathedral in Vienna.

Capestrano commands a hilltop location in Abruzzo

Travel tip:

Capestrano, where St John was born, is a small town in the province of L’Aquila in Abruzzo. It is within the area of the Gran Sasso e Monti della Laga National Park. The Benedictine Abbey of St Peter ad Oratorium is on the bank of the Tirino river, six kilometres from Capestrano. It was originally built in AD 752 as part of a monastery. There is also a 13th century castle on the hill above the river and the lake of Capodacqua, which contains the submerged ruins of mills.


Travel tip:

Perugia, where St John was Governor, is the capital city of Umbria and is well known for being a University town, with its own 14th century University of Umbria, the popular University for Foreigners (Universita per Stranieri), which hosts about 5,000 students a year, some smaller colleges and institutes and the Music Conservatory, which was founded in 1788.

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Soave - an Italian classic wine

How the dry white from the Veneto earned its DOC status

Soave from
the famous
Bolla vineyard

Soave - at one time the world's most popular Italian wine - was officially granted a DOC classification on this day in 1968.

The DOC status - which stands for Denominazione di Origine Controllata - was introduced midway through the last century as part of a series of laws designed to safeguard the quality and authenticity of Italian wines.

Winegrowers had been pushing for such regulation because the increasing popularity of Italian wines around the world was impacting on quality as more and more producers sprang up to meet demand.

Soave was a case in point.  Originally limited to a small area of just 2,720 acres (1,100 hectares) in the hills to the north of the small towns of Soave and Monteforte d'Alpone, roughly 25km east of Verona in the Veneto region, production spread rapidly to an area more than six times as large.

The biggest demand was from the United States, which developed a taste for Italian wines in the boom years that followed the end of the Second World War.  Of the huge volume of imported bottles that arrived on ships from Europe, Soave was the most popular.

Its reputation then was that of a fine, high quality wine, not unlike France's Chablis in style - pale coloured, lively and refreshing and with crisp mineral flavours and a clean finish.

However, mass production led to a decline in quality.  Grapes grown on the flatlands in the expanding production zone did not yield wine of the same character as those grown on the hillsides, and more and more liberties were taken with the blend of grapes used.

Soave is produced using the Garganega grape

Most wineries honoured the fundamental requirement that a minimum 70 per cent of the blend should be the Garganega grape, which gives the wine its characteristic almond nose, but some were more liberal. And sometimes the Trebbiano di Soave grape that by tradition made up the other 30 per cent in the recipe would be substituted with the very different Trebbiano Toscano, or with other varieties producing different qualities.

At the same time, the volumes being produced led to prices falling, which while a good thing in some respects tended to have a negative effect on the wine's reputation.  With its rarity value gone, Soave began to be seen as a cheap wine, not one with which the wealthy could impress their friends.

Swanky restaurants began to drop it from their wine lists and the knock-on effect was soon felt by wine merchants, too, as customers looked for exclusivity elsewhere.

A similar tipping point was also reached in the United Kingdom and Soave's popularity began to wane, with Pinot Grigio taking its place as the favourite among Italian whites.

Although the area in which Soave makers could obtain DOC status after 1968 reflected the expanded production zone, strict rules on the blend had to be followed.  Garganega grapes had to make up between 70 and 100 per cent and Trebbiano di Soave between 0 and 30 per cent.

The beautiful rolling hills near Verona where Soave is made

Soave produced from grapes grown in the historical 1,100 hectares around Soave and Monteforte d'Alpone was marketed as Soave Classico.

Since the DOC classification came into being, two further indicators of provenance have been introduced.  Wines of the highest quality can qualify for the certification category Denominazione di Origine Controllata e Garantita (DOCG), while wines that do not adhere exactly to the DOC guidelines but are nonetheless judged as of good quality can be awarded an IGT (Indicazione Geografica Tipica) certificate.

Recent signs are that Soave is regaining some of the market share lost to Pinot Grigio.  More sophisticated and reliable production methods have led to higher quality wines, with subtle variations in taste relating to the location of the vineyard underpinning the crisp, non-acidic freshness.

Older wine connoisseurs are still tending to give it a wide berth but a new, younger generation of wine drinkers are discovering it afresh, tiring of Pinot Grigio, still enjoying the fashionable Sauvignon Blancs of Australia and New Zealand but finding Soave a pleasing alternative that is a little easier on the pocket.

The 10th century house at the centre of Soave Castle

Travel tip:

Soave, a small municipality of fewer than 10,000 inhabitants, is notable for its castle, which enjoys a commanding location overlooking the town.  Originally built in the 10th century to protect the area against the Hungarians, it was added to in the 14th and 15th centuries and has three lines of walls.  It was bought privately in the 19th century and restored, and is now open to the public, with several rooms of exhibits, including a dining room with medieval kitchenware.  The poet Dante Alighieri is said to have stayed there as a guest of the Scaligeri family, who were part of a noble Veronese dynasty.

Travel tip:

Nearby Verona, which sits astride the Adige river, is regarded as one of Italy's most beautiful cities.  It attracts hundreds of thousands of visitors whose sole aim is to find the 14th century house in the centre of the city where the balcony overlooking a courtyard was made famous by Shakespeare's play Romeo and Juliet, which he based on stories of Verona's warring Montague and Capulet families.  But there is much more to the city, which has a fascinating network of narrow medieval streets, some fine churches, handsome squares and impressive Roman ruins, the most famous of which is the vast Arena amphitheatre, designed to accommodate 30,000 spectators and now a major venue for music concerts and opera.

(Photo of Soave landscape by Alessandro Pighi CC BY-SA 4.0)
(Photo of Soave Castle by Casalmaggiore Provincia CC BY-SA 4.0)

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