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Death of Physicist George Johnstone Stoney

George Johnstone Stoney FRS, Irish physicist, dies on July 5, 1911, at Notting Hill, London, England. He is most famous for introducing the term “electron” as the “fundamental unit quantity of electricity.” He introduces the concept, though not the word, as early as 1874, initially naming it “electrine,” and the word itself comes in 1891. He publishes around 75 scientific papers during his lifetime.

Stoney is born on February 15, 1826, at Oakley Park, near Birr, County Offaly, in the Irish Midlands, the son of George Stoney and Anne (née Bindon Blood). His only brother is Bindon Blood Stoney, who becomes chief engineer of the Dublin Port and Docks Board. The Stoney family is an old-established Anglo-Irish family. During the time of the famine (1845–52), when land prices plummet, the family property is sold to support his widowed mother and family. He attends Trinity College Dublin (TCD), graduating with a BA degree in 1848. From 1848 to 1852 he works as an astronomy assistant to William Parsons, 3rd Earl of Rosse, at Birr Castle, County Offaly, where Parsons had built the world’s largest telescope, the 72-inch Leviathan of Parsonstown. Simultaneously he continues to study physics and mathematics and is awarded an MA by TCD in 1852.

From 1852 to 1857, Stoney is professor of physics at Queen’s College Galway. From 1857 to 1882, he is employed as Secretary of the Queen’s University of Ireland, an administrative job based in Dublin. In the early 1880s, he moves to the post of superintendent of Civil Service Examinations in Ireland, a post he holds until his retirement in 1893. He continues his independent scientific research throughout his decades of non-scientific employment duties in Dublin. He also serves for decades as honorary secretary and then vice-president of the Royal Dublin Society (RDS), a scientific society modeled after the Royal Society of London and, after his move to London in 1893, he serves on the council of that society as well. Additionally, he intermittently serves on scientific review committees of the British Association for the Advancement of Science from the early 1860s.

Stoney publishes seventy-five scientific papers in a variety of journals, but chiefly in the journals of the Royal Dublin Society. He makes significant contributions to cosmic physics and to the theory of gases. He estimates the number of molecules in a cubic millimeter of gas, at room temperature and pressure, from data obtained from the kinetic theory of gases. His most important scientific work is the conception and calculation of the magnitude of the “atom of electricity.” In 1891, he proposes the term “electron” to describe the fundamental unit of electrical charge, and his contributions to research in this area lays the foundations for the eventual discovery of the particle by J. J. Thomson in 1897.

Stoney’s scientific work is carried out in his spare time. A heliostat he designed is in the Science Museum Group collection. He is elected a Fellow of the Royal Society in June 1861.

Stoney proposes the first system of natural units in 1881. He realizes that a fixed amount of charge is transferred per chemical bond affected during electrolysis, the elementary charge e, which can serve as a unit of charge, and that combined with other known universal constants, namely the speed of light c and the Newtonian constant of gravitation G, a complete system of units can be derived. He shows how to derive units of mass, length, time and electric charge as base units. Due to the form in which Coulomb’s law is expressed, the constant 4πε0 is implicitly included, ε0 being the vacuum permittivity.

Like Stoney, Max Planck independently derives a system of natural units (of similar scale) some decades after him, using different constants of nature.

Hermann Weyl makes a notable attempt to construct a unified theory by associating a gravitational unit of charge with the Stoney length. Weyl’s theory leads to significant mathematical innovations, but his theory is generally thought to lack physical significance.

Stoney marries his cousin, Margaret Sophia Stoney, by whom he has had two sons and three daughters. One of his sons, George Gerald Stoney FRS, is a scientist. His daughter Florence Stoney OBE is a radiologist while his daughter Edith is considered to be the first woman medical physicist. His most scientifically notable relative is his nephew, the Dublin-based physicist George Francis FitzGerald. He is second cousin of the grandfather of Ethel Sara Turing, mother of Alan Turing.

After moving to London, Stoney lives first at Hornsey Rise, north London, before moving to 30 Chepstow Crescent, Notting Hill, west London. In his later years illness confines him to a single floor of the house, which is filled with books, papers, and scientific instruments, often self-made. He dies at his home on July 5, 1911. His cremated ashes are buried in St. Nahi’s Church, Dundrum, Dublin.

Stoney receives an honorary Doctor of Science (D.Sc.) from the University of Dublin in June 1902. Also in 1902, he is elected as a member to the American Philosophical Society. The street that he lived on in Dundrum is later renamed Stoney Road in his memory.

Craters on Mars and the Moon are named in his honour.


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Magee College Opens in Derry, County Londonderry

magee-college-1870

Magee College opens on October 10, 1865, as a Presbyterian Christian arts and theological college in Derry, County Londonderry, Northern Ireland. Since 1953, it has had no religious affiliation and provides a broad range of undergraduate and postgraduate academic degree programmes in disciplines ranging from business, law, social work, creative arts & technologies, cinematic arts, design, computer science and computer games to psychology and nursing.

The Magee Campus gains its name from Martha Magee, the widow of a Presbyterian minister, who, in 1845, bequeathed £20,000 to the Presbyterian Church in Ireland to found a college for theology and the arts. It opens in 1865 primarily as a theological college but accepts students from all denominations to study a variety of subjects. It is a college of the Royal University of Ireland from 1880 and later becomes associated with Trinity College, Dublin when the Royal University is dissolved in 1909 and replaced by the National University of Ireland.

During World War II, the college is taken over by the Admiralty for Royal NavyRoyal Navy operational use, becoming with Ebrington Barracks (HMS Ferret), a major facility in the Battle of the Atlantic. A 2013 BBC report describes a secret major control bunker, later buried beneath the lawns of the college. From 1941 this bunker, part of Base One Europe, together with similar bunkers in Derby House, Liverpool and Whitehall is used to control one million Allied personnel and fight the Nazi U-boat threat.

In 1953, Magee Theological College separates from the remainder of the college, eventually moving to Belfast in a 1978 merger that forms Union Theological College. Also in 1953, Magee College breaks its ties with Dublin and becomes Magee University College. It is hoped by groups led by the University for Derry Committee that this university college would become Northern Ireland’s second university after Queen’s University Belfast. However, in the 1960s, following the recommendations in The Lockwood Report by Sir John Lockwood, Master of Birkbeck College, London and former Vice-Chancellor of the University of London, the Parliament of Northern Ireland makes a controversial decision to pass it over in favour of a new university in Coleraine. Instead it is incorporated into the two-campus New University of Ulster in 1969. The next fourteen years see the college halve in size, while development focuses on the main Coleraine campus.

In 1984, the New University merges with the Ulster Polytechnic, and Magee becomes the early focus of development of a new four-campus university, the University of Ulster. Student and faculty numbers recover and grow rapidly over the next ten to fifteen years, accompanied by numerous construction projects. Magee grows from just 273 students in 1984 to over 4,000 undergraduates in 2012. In 2012, the University continues to lobby the Northern Ireland Executive for an additional 1,000 full-time undergraduate places, leading to 6,000 students at Magee in 2017.

On September 14, 2013, Magee hosts, for the first time on the island of Ireland, the 23rd International Loebner Prize Contest in Artificial Intelligence based on the Turing test proposed by the renowned British computer scientist Alan Turing in 1950. Turing also works on cracking the Enigma machine code at Bletchley Park which is instrumental in the Battle of the Atlantic.

In October 2014 the University of Ulster is rebranded as Ulster University.

(Pictured: Magee College, c. 1870)


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Birth of Conel Hugh O’Donel Alexander, Cryptanalyst & Chess Player

Conel Hugh O’Donel Alexander, Irish-born British cryptanalyst, chess player, and chess writer, is born in Cork, County Cork, on April 19, 1909. He works on the German Enigma machine at Bletchley Park during World War II, and is later the head of the cryptanalysis division at Government Communications Headquarters (GCHQ) for over 20 years. In chess, he twice wins the British Chess Championship and earns the title of International Master. He is usually referred to as C.H.O’D. Alexander in print and Hugh in person.

Alexander is born into an Anglo-Irish family, the eldest child of Conel William Long Alexander, an engineering professor at University College Cork (UCC), and Hilda Barbara Bennett. His father dies during the Irish War of Independence in 1920, and the family moves to Birmingham in England where he attends King Edward’s School. He wins a scholarship to study mathematics at King’s College, Cambridge, in 1928, graduating with a first in 1931. He represents the University of Cambridge in the Varsity chess matches of 1929, 1930, 1931 and 1932.

From 1932, Alexander teaches mathematics in Winchester and marries Enid Constance Crichton Neate on December 22, 1934. In 1938 he leaves teaching and becomes head of research at the John Lewis Partnership.

In February 1940 Alexander arrives at Bletchley Park, the British codebreaking centre during the World War II. He joins Hut 6, the section tasked with breaking German Army and Air Force Enigma messages. In 1941, he transfers to Hut 8, the corresponding hut working on Naval Enigma. He becomes deputy head of Hut 8 under Alan Turing and formally becomes the head of Hut 8 in November 1942. In October 1944, Alexander is transferred to work on the Japanese JN-25 code.

In mid-1946, Alexander joins GCHQ, which is the post-war successor organisation to the Government Code and Cypher School (GC&CS) at Bletchley Park. By 1949, he has been promoted to the head of “Section H” (cryptanalysis), a post he retains until his retirement in 1971.

Alexander is twice a winner of the British Chess Championship, in 1938 and 1956. He represents England in the Chess Olympiad six times, in 1933, 1935, 1937, 1939, 1954 and 1958. At the 1939 Olympiad in Buenos Aires, Argentina, Alexander has to leave part-way through the event, along with the rest of the English team, due to the declaration of World War II, as he is required at home for codebreaking duties. He is also the non-playing captain of England from 1964 to 1970. He is awarded the International Master title in 1950 and the International Master for Correspondence Chess title in 1970. He wins the Hastings International Chess Congress 1946/47 with the score 7½/9, a point ahead of Savielly Tartakower. His best tournament result may have been first equal Hastings 1953/54, where he goes undefeated and beats Soviet grandmasters David Bronstein and Alexander Tolush in individual games. He is also the chess columnist of The Sunday Times in the 1960s and 1970s.

Many knowledgeable chess people believe that Alexander had Grandmaster potential, had he been able to develop his chess abilities further. Many top players peak in their late twenties and early thirties, but for Alexander this stretch coincided with World War II, when high-level competitive opportunities were unavailable. After this, his professional responsibilities as a senior cryptanalyst limited his top-class appearances. He defeats Mikhail Botvinnik in one game of a team radio match against the Soviet Union in 1946, at a time when Botvinnik is probably the world’s top player. Alexander makes important theoretical contributions to the Dutch Defence and Petrov’s Defence.

Conel Hugh O’Donel Alexander dies on February 15, 1974, in Cheltenham, Gloucestershire, England.