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Birth of Mary Field Parsons, Countess of Rosse

Mary Parsons (née Field), Countess of Rosse, Anglo-Irish amateur astronomer, architect, furniture designer, and pioneering photographer, is born on April 14, 1813, at Heaton Hall, Heaton, Bradford, West Yorkshire, England. Often known simply as Mary Rosse, she is one of the early practitioners of making photographs from waxed-paper negatives.

Field is the daughter of John Wilmer Field, a wealthy estate owner. She has a sister, Delia, and they are educated at home by Susan Lawson, a governess who encourages her creativity and broad interests, including astronomy. The sisters are joint heirs to their father’s fortune.

Through her family Field meets William Parsons, then Lord Oxmantown and the future 3rd Earl of Rosse, an Anglo-Irish astronomer and naturalist, and they are married on April 14, 1836, her 23rd birthday. In February 1841, Lord Oxmantown succeeds his father in the family peerage to become the 3rd Earl of Rosse. She, Baroness Oxmantown since her marriage, thus now becomes the Countess of Rosse.

In the early 1840s the couple becomes interested in astronomy, and the Countess of Rosse helps her husband build a number of giant telescopes, including the so-called Leviathan of Parsonstown, that is considered a technical marvel in its time. The author, Henrietta Heald, contends that she is not only a financial support to the building of the telescope, but is also involved in a practical and intellectual capacity. The Leviathan of Parsontown is completed in 1845 and holds the record as the world’s largest telescope for over 70 years. It is mentioned in Jules Verne’s science fiction novel, From the Earth to the Moon.

The Countess of Rosse is an accomplished blacksmith, which is very unusual for higher class women of the time, and she may have constructed some of the iron work that supports the telescope. Other metal cast items around the castle grounds are designed by her, including bronze gates.

During the Great Famine of 1845–47 in Ireland, the Countess of Rosse is responsible for keeping over five hundred men employed in work in and around Birr Castle, where she and her husband live.

The Countess of Rosse creates a huge dining room at Birr Castle in which to entertain scientific guests, which becomes increasingly used when Lord Rosse becomes President of the Royal Society of London in 1848. Guests include mathematician William Rowan Hamilton, who writes her a sonnet about his experience of gazing through the Leviathan.

In 1842, Lord Rosse begins experimenting in daguerreotype photography, possibly learning some of the art from his acquaintance William Henry Fox Talbot. In 1854, he writes to Fox Talbot saying that the Countess too has just commenced photography and sends some examples of her work. Fox Talbot replies that some of her photographs of the telescope “are all that can be desired.”

The Countess of Rosse becomes a member of the Dublin Photographic Society, and in 1859 she receives a silver medal for “best paper negative” from the Photographic Society of Ireland. Many examples of her photography are in the Birr Castle Archives. Much of the topography of Birr Castle that she portrayed has changed very little, and it is possible to compare many of her photographs with the actual places. She records the Leviathan in her photographs including one image showing her three sons, Clere, Randal and Charles along with her sister-in-law, Jane Knox, standing upright at the mouth of the telescope.

The Countess of Rosse gives birth to eleven children, but only four survive to adulthood:

Mary, Dowager Countess of Rosse, dies in 1885.


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Death of Edward Cecil Guinness, 1st Earl of Iveagh

Edward Cecil Guinness, 1st Earl of Iveagh, Irish businessman and philanthropist, dies at his London home in Grosvenor Place on October 7, 1927

Guinness is born on November 10, 1847 at St. Anne’s, Clontarf, County Dublin, the youngest of three sons of Sir Benjamin Lee Guinness, brewer, of Dublin, and Elizabeth, third daughter of Edward Guinness of Dublin. He is not sent to public school but is taught at home by a private tutor before entering Trinity College Dublin, where he takes his degree in 1870. His father dies in 1868, leaving him a share in the brewery, and he takes over management of the business with his brother Arthur, who in 1876 sells his shares, making Edward sole proprietor.

Guinness is also prominent in municipal life, holding the offices of Sheriff of Dublin City in 1876 and High Sheriff of the County of Dublin in 1885, the year in which he is created a baronet. He is a brilliantly effective businessman, with close attention to detail and a focus solely on the brewery, to the extent of remaining independent from the rest of the brewing trade. In 1888 he bluntly tells the Country Brewers’ Association, “I have always declined to identify myself with any trade question, or to take any side in a controversy on the liquor question, and to this I must adhere.” In 1886 Guinness is floated as a public company, a superbly successful venture with applications for shares exceeding £100 million, and Edward remains as chairman until 1890, although his formal retirement in that year brings little reduction in his involvement with the company, and he continues to make the final decision on many minor matters as well as all major questions of policy.

Socially innovative, with a concern for the welfare of employees, from as early as 1870 Guinness establishes a free dispensary for his workforce and makes provisions for pension and other allowances – acts of social reform that are remarkable for the time. To mark his retirement in 1890 he places in trust £250,000 to be expended in the erection of working-class housing in London and Dublin. Both funds are administered from London until 1903, when the Dublin fund is amalgamated by the Iveagh Trust act with other schemes carried out in Dublin by Edward, who had been raised to the peerage of the United Kingdom in 1891 as Baron Iveagh of Iveagh, County Down. The funds, which increase considerably from the original amount, are thereafter managed entirely in Dublin as a separate undertaking under the name of the Iveagh Trust, still in existence in the early twenty-first century.

As one of the pioneers of the voluntary housing movement Guinness is essentially carrying on the tradition of “merchant prince and city father” established by his father and shared by his brother. Wealthy, ambitious, and resolutely unionist, he gives generous financial support to the Irish Unionist Alliance, and is also public-spirited, religious, and devoted to duty. Acknowledging that the Iveagh Trust is essentially ameliorative, he believes that major social change will only be achieved if numerous other wealthy people follow his example. He insists that gifts of money from the fund are permissible only to assist individuals to improve their condition “without placing them in the position of being the recipients of a bounty.” Numerous other philanthropic donations follow, including another £250,000 for slum clearance in the Bull Alley district of Dublin; various contributions to Dublin hospitals, particularly in 1903 and 1911 on the occasion of royal visits; and in 1907 the opening of the Iveagh Markets, situated in the Francis Street and Patrick Street areas of Dublin, are made possible with his financial backing. Generous contributions are also made to Trinity College Dublin, of which he is elected chancellor in 1908, and he donates land in Iveagh Gardens to University College Dublin (UCD).

In 1905 Guinness is raised to a viscountcy and in September 1909 the nationalist corporation of Dublin presents him with an address of thanks for his many gifts, and even discusses the possibility of offering him the lord mayoralty of the city, which he declines owing to his political affiliations. By this time he lives chiefly in England, having bought Elveden Hall in Suffolk, where he frequently entertains royalty. He also purchases Lord Kensington’s London estate and makes many donations to medical research societies in England, and in conjunction with Sir Ernest Cassel he founds the London Radium Institute, as well as donates £250,000 to the Laster Institute of Tropical Medicine for the endowment of bacteriological research.

In 1919 Guinness is elevated to an earldom and in 1925 purchases the remainder of the Kenwood estate to the north of Hampstead Heath and arranges for it to become public property, ensuring the estate will not be sold for building purposes, and also bequeaths to the nation a valuable collection of art for use in the gallery at the same location. As well as being elected a fellow of the Royal Society, he is awarded honorary doctorates from the University of Dublin and the University of Aberdeen.

In 1873, Guinness marries his third cousin Adelaide Maud, nicknamed “Dodo.” She is descended from the banking line of Guinnesses, and is the daughter of Richard Samuel Guinness, barrister and MP, and his wife Katherine, a daughter of Sir Charles Jenkinson. They have three sons, the eldest of whom, Rupert Edward Cecil Lee, succeeds his father as 2nd Earl of Iveagh.

Guinness dies at his London home in Grosvenor Place on October 7, 1927, and is buried at Elveden, Suffolk. He leaves an estate valued at £11 million.


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Birth of Mary Ward, Astronomer, Microscopist, Author & Artist

Mary Ward (née King), Irish naturalist, astronomer, microscopist, author, and artist, is born in Ballylin near present-day Ferbane, County Offaly, on April 27, 1827. She is killed in 1869 when she falls under the wheels of an experimental steam car built by her cousins, thereby becoming the first person known to be killed by a motor vehicle.

King is the youngest child of the Reverend Henry King and his wife Harriette. She and her sisters are educated at home, as are most girls at the time. However, her education is slightly different from the norm because she is of a renowned scientific family. She is interested in nature from an early age, and by the time she is three years old she is collecting insects.

King is a keen amateur astronomer, sharing this interest with her cousin, William Parsons, 3rd Earl of Rosse, who builds the Leviathan of Parsonstown, a reflecting telescope with a six-foot mirror which remains the world’s largest until 1917. She is a frequent visitor to Birr Castle, producing sketches of each stage of the process. Along with photographs made by Parson’s wife, Mary Rosse, her sketches are used to aid in the restoration of the telescope.

King also draws insects, and the astronomer James South observes her doing so one day. She is using a magnifying glass to see the tiny details, and her drawing so impresses him that he immediately persuades her father to buy her a microscope. A compound microscope made by Andrew Ross is purchased for £48 12s 8d. This is the beginning of a lifelong passion. She begins to read everything she can find about microscopy, and teaches herself until she has an expert knowledge. She makes her own slides from slivers of ivory, as glass is difficult to obtain, and prepares her own specimens. The physicist David Brewster asks her to make his microscope specimens, and uses her drawings in many of his books and articles.

Universities and most societies do not accept women at the time, but King obtains information any way she can. She writes frequently to scientists, asking them about papers they had published. During 1848, Parsons is made president of the Royal Society, and visits to his London home allows her to meet many scientists.

King is one of only three women on the mailing list for the Royal Astronomical Society. The others are Queen Victoria and Mary Somerville, a scientist for whom Somerville College at the University of Oxford is named.

On December 6, 1854, King marries Henry Ward of Castle Ward, County Down, who in 1881 succeeds to the title of Viscount Bangor. They have three sons and five daughters, including Maxwell Ward, 6th Viscount Bangor. Her best-known descendants are her grandson, Edward Ward, the foreign correspondent and seventh viscount, and his daughter, the Doctor Who actress Lalla Ward.

When Ward writes her first book, Sketches with the microscope (privately printed in 1857), she apparently believes that no one will print it because of her gender or lack of academic credentials. She publishes 250 copies of it privately, and several hundred handbills are distributed to advertise it. The printing sells during the next few weeks, which prompts a London publisher to take the risk and contract for future publication. The book is reprinted eight times between 1858 and 1880 as A World of Wonders Revealed by the Microscope. A new full-colour facsimile edition at €20 is published in September 2019 by the Offaly Historical and Archaeological Society, with accompanying essays.

Her books are A Windfall for the Microscope (1856), A World of Wonders, Revealed by the Microscope (1857), Entomology in Sport, and Entomology in Earnest (1857, with Lady Jane Mahon), Microscope Teachings (1864), Telescope Teachings (1859). She illustrates her books and articles herself, as well as many books and papers by other scientists.

Ward is the first known automobile fatality. William Parsons’ sons had built a steam-powered car and on August 31, 1869, she and her husband are traveling in it with the Parsons boys, Richard Clere Parsons and the future steam turbine pioneer Charles Algernon Parsons, and their tutor, Richard Biggs. She is thrown from the car on a bend in the road at Parsonstown (present-day Birr, County Offaly). She falls under its wheel and dies almost instantly. A doctor who lives near the scene arrives within moments, and finds her cut, bruised, and bleeding from the ears. The fatal injury is a broken neck. It is believed that the grieving family destroys the car after the crash.

Ward’s microscope, accessories, slides and books are on display in her husband’s home, Castle Ward, County Down. William Parsons’ home at Birr Castle, County Offaly, is also open to the public.


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Death of John Hewitt Jellett, Mathematician & Priest

John Hewitt Jellett, Irish mathematician whose career is spent at Trinity College Dublin (TCD), where he rises to the rank of Provost, dies in Dublin on February 19, 1888. He is also a priest in the Church of Ireland.

Jellett is born at Cashel, County Tipperary, on December 25, 1817, the son of Rev. Morgan Jellett and his wife Harriette Townsend, daughter of Hewitt Baldwin Poole of County Cork, by his wife Dorothea Morris. He is the eldest brother of Hewitt Poole Jellett, Serjeant-at-law (Ireland) and Chairman of the Quarter Sessions for County Laois, and of the Venerable Henry Jellett, Archdeacon of Cloyne. He is educated at Kilkenny College and at TCD, where he becomes a fellow in 1840.

Jellett marries his cousin on his mother’s side, Dorothea Charlotte Morris Morgan, daughter of James Morgan, on July 7, 1855. The marriage produces seven children. His son, William Morgan Jellett, is a member of the Parliament of the United Kingdom and is the father of the celebrated artist Mainie Jellett, and of Dorothea Jellett, director of the orchestra of the Gaiety Theatre, Dublin. Another son Henry Holmes Jellett is a civil engineer in British India. His daughter Harriette Mary Jellett is the wife of the noted Irish physicist George Francis FitzGerald. Another daughter Eva Jellett is the first woman to graduate with a degree in medicine from Trinity, and goes on to practice as a doctor in India.

Jellett graduates B.A. in mathematics in 1837, M.A. 1843, B.D. 1866, and D.D. 1881. He is ordained a priest in 1846. In 1848 he is elected to the chair of natural philosophy at TCD, and in 1868 he receives the appointment of commissioner of Irish national education.

In 1851 Jellett is awarded the Cunningham Medal of the Royal Irish Academy for his work on the “Calculus of Variations.” The society later elects him their president, a position he holds from 1869 to 1874.

In 1870, on the death of Dr. Thomas Luby, Jellett is co-opted a Senior Fellow, and thus a member of the Board of TCD. William Ewart Gladstone‘s government in February 1881 appoints him provost of Trinity. In the same year he is awarded a Royal Medal by the Royal Society.

After the disestablishment of the Church of Ireland by the Irish Church Act 1869, Jellett takes an active part in the deliberations of the general synod and in every work calculated to advance its interests. He is an able mathematician, and writes A Treatise of the Calculus of Variations (1850), and A Treatise on the Theory of Friction (1872), as well as several papers on pure and applied mathematics, articles in the Transactions of the Royal Irish Academy. He also writes some theological essays, sermons, and religious treatises, of which the principal are An Examination of some of the Moral Difficulties of the Old Testament (1867), and The Efficacy of Prayer (1878).

Jellett dies of blood poisoning at the provost’s house, TCD, on February 19, 1888, and is buried in Mount Jerome Cemetery on February 23. The funeral procession is the largest that ever left Trinity.

(Pictured: “John Hewitt Jellett,” oil on canvas by Sarah Purser)


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Birth of Thomas Andrews, Chemist & Physicist

Thomas Andrews FRS FRSE, chemist and physicist who does important work on phase transitions between gases and liquids, is born in Belfast on December 19, 1813. He is a longtime professor of chemistry at Queen’s University Belfast.

Andrews’ father is a linen merchant. He attends the Belfast Academy and the Royal Belfast Academical Institution, where at the latter of which he studies mathematics under James Thomson. In 1828 he goes to the University of Glasgow to study chemistry under Professor Thomas Thomson, then studies at Trinity College, Dublin, where he gains distinction in classics as well as in science. Finally, at University of Edinburgh in 1835, he is awarded a doctorate in medicine.

Andrews begins a successful medical practice in his native Belfast in 1835, also giving instruction in chemistry at the Academical Institution. In 1842, he marries Jane Hardie Walker (1818–1899). They have six children, including the geologist Mary Andrews. In 1845 he is appointed vice-president of the newly established Queen’s University Belfast, and professor of chemistry there. He holds these two offices until his retirement in 1879 at age 66.

Andrews first becomes known as a scientific investigator with his work on the heat developed in chemical actions, for which the Royal Society awards him a Royal Medal in 1844. Another important investigation, undertaken in collaboration with Peter Guthrie Tait, is devoted to ozone.

Andrews’ reputation mainly rests on his work with liquefaction of gases. In the 1860s he carries out a very complete inquiry into the gas laws, expressing the relations of pressure, temperature, and volume in carbon dioxide. In particular, he establishes the concepts of critical temperature and critical pressure, showing that a substance passes from vapor to liquid state without any breach of continuity.

In Andrews’ experiments on phase transitions, he shows that carbon dioxide may be carried from any of the states we usually call liquid to any of those we usually call gas, without losing homogeneity. The mathematical physicist Josiah Willard Gibbs cites these results in support of the Gibbs free energy equation. They also set off a race among researchers to liquify various other gases. In 1877-78 Louis Paul Cailletet is the first to liquefy oxygen.

Andrews dies in Belfast on November 26, 1885, and is buried in the Borough Cemetery in the city.


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Death of Lawrence Parsons, 4th Earl of Rosse

Lawrence Parsons, 4th Earl of Rosse, KP, FRS, a member of the Irish peerage and an amateur astronomer, dies on August 29, 1908. His name is often given as Laurence Parsons.

Parsons is born at Birr Castle, Parsonstown, King’s County (now County Offaly), the son and heir of the astronomer William Parsons, 3rd Earl of Rosse, who built the “Leviathan of Parsonstown” reflecting telescope, largest of its day, and his wife, the Countess of Rosse (née Mary Field), an amateur astronomer and pioneering photographer. He succeeds his father in 1867 and is educated first at home by tutors, like John Purser, and after at Trinity College, Dublin and the University of Oxford. He is the brother of Charles Algernon Parsons, inventor of the steam turbine.

Parsons serves as the eighteenth Chancellor of Trinity College, Dublin between 1885 and 1908. His father serves as the sixteenth Chancellor. He is Lord Lieutenant of King’s County and Custos Rotulorum of King’s County from 1892 until his death. He is also a Justice of the Peace for the county and is appointed High Sheriff of King’s County for 1867–68. He is knighted KP in 1890.

Parsons also performs some preliminary work in association with the practices of the electrodeposition of copper sulfate upon silver films circa 1865 while in search of the design for a truly flat mirror to use in a telescope. However, he finds it impossible to properly electroplate copper upon these silver films, as the copper contracts and detaches from the underlying glass substrate. His note has been cited as one of the earliest confirmations in literature that thin films on glass substrates experience residual stresses. He revives discussion in his work Nature’s August 1908 edition after witnessing similar techniques used to present newly-devised searchlights before the Royal Society.

Although overshadowed by his father (when astronomers speak of “Lord Rosse”, it is almost always the father that they refer to), Parsons nonetheless pursues some astronomical observations of his own, particularly of the Moon. Most notably, he discovers NGC 2, a spiral galaxy in the constellation Pegasus.

Parsons is elected a Fellow of the Royal Society in December 1867 and delivers the Bakerian lecture there in 1873. He is vice-president of the society in 1881 and 1887. From 1896 he is President of the Royal Irish Academy. In May 1902 he is at Caernarfon to receive the honorary degree LL.D. (Legum Doctor) from the University of Wales during the ceremony to install the Prince of Wales (later King George V) as Chancellor of that university.


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Birth of Astronomer William Parsons, 3rd Earl of Rosse

William Parsons, 3rd Earl of Rosse, Anglo-Irish astronomer, naturalist, and engineer, is born in York, England on June 17, 1800. He is President of the Royal Society (UK), the most important association of naturalists in the world in the nineteenth century. He builds several giant telescopes. His 72-inch telescope, built in 1845 and colloquially known as the “Leviathan of Parsonstown,” is the world’s largest telescope, in terms of aperture size, until the early 20th century. From April 1807 until February 1841, he is styled as Baron Oxmantown.

Parsons is the son of Lawrence Parsons, 2nd Earl of Rosse, and Alice Lloyd. He is educated at Trinity College, Dublin and Magdalen College, Oxford, graduating with first-class honours in mathematics in 1822. He inherits an earldom and a large estate in King’s County (now County Offaly) in Ireland when his father dies in February 1841.

Parsons marries Mary Field, daughter of John Wilmer Field, on April 14, 1836. They have thirteen children, of which four sons survive to adulthood: Lawrence, 4th Earl of Rosse, Rev. Randal Parsons, the Hon. Richard Clere Parsons, and the Hon. Sir Charles Algernon Parsons.

In addition to his astronomical interests, Parsons serves as a Member of Parliament (MP) for King’s County from 1821 to 1834, president of the British Science Association in 1843–1844, an Irish representative peer after 1845, president of the Royal Society (1848–1854), and chancellor of Trinity College, Dublin (1862–1867).

During the 1840s, Parsons has the Leviathan of Parsonstown built, a 72-inch telescope at Birr Castle, Parsonstown, County Offaly. He has to invent many of the techniques he uses for constructing the Leviathan, both because its size is without precedent and because earlier telescope builders had guarded their secrets or had not published their methods. Details of the metal, casting, grinding and polishing of the 3-ton ‘speculum’ are presented in 1844 at the Belfast Natural History Society. His telescope is considered a marvelous technical and architectural achievement, and images of it are circulated widely within the British commonwealth. Building of the Leviathan begins in 1842 and it is first used in 1845, with regular use waiting another two years due to the Great Famine. Using this telescope he sees and catalogues a large number of nebulae, including a number that would later be recognised as galaxies.

Parsons performs astronomical studies and discovers the spiral nature of some nebulas, today known to be spiral galaxies. His telescope Leviathan is the first to reveal the spiral structure of M51, a galaxy nicknamed later as the “Whirlpool Galaxy,” and his drawings of it closely resemble modern photographs.

Parsons dies at the age of 67 on October 31, 1867 at Monkstown, County Dublin.

Parsons’s son publishes his father’s findings, including the discovery of 226 New General Catalogue of Nebulae and Clusters of Stars (NGC) objects in the publication Observations of Nebulae and Clusters of Stars Made With the Six-foot and Three-foot Reflectors at Birr Castle From the Year 1848 up to the Year 1878, Scientific Transactions of the Royal Dublin Society Vol. II, 1878.


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Birth of Robert Boyle, Philosopher, Writer & Chemist

Robert Boyle, Anglo-Irish natural philosopher, theological writer, chemist, physicist, inventor and a preeminent figure of 17th-century intellectual culture, is born on January 25, 1627 at Lismore Castle, in County Waterford.

At age eight, Boyle begins his formal education at Eton College, where his studious nature quickly becomes apparent. In 1639 he and his brother Francis embark on a grand tour of the continent together with their tutor Isaac Marcombes. In 1642, owing to the Irish rebellion, Francis returns home while Robert remains with his tutor in Geneva and pursues further studies.

Boyle returns to England in 1644, where he takes up residence at his hereditary estate of Stalbridge in Dorset. There he begins a literary career writing ethical and devotional tracts, some of which employ stylistic and rhetorical models drawn from French popular literature, especially romance writings. In 1649 he begins investigating nature via scientific experimentation. From 1647 until the mid-1650s, he remains in close contact with a group of natural philosophers and social reformers gathered around the intelligencer Samuel Hartlib. This group, the Hartlib Circle, includes several chemists who heighten his interest in experimental chemistry.

Boyle spends much of 1652–1654 in Ireland overseeing his hereditary lands and performing some anatomic dissections. In 1654 he is invited to Oxford, and he takes up residence at the university until 1668. In Oxford he is exposed to the latest developments in natural philosophy and becomes associated with a group of notable natural philosophers and physicians, including John Wilkins, Christopher Wren, and John Locke. These individuals, together with a few others, form the “Experimental Philosophy Club.” Much of Boyle’s best known work dates from this period.

In 1659 Boyle and Robert Hooke, the clever inventor and subsequent curator of experiments for the Royal Society, complete the construction of their famous air pump and use it to study pneumatics. Their resultant discoveries regarding air pressure and the vacuum appear in Boyle’s first scientific publication, New Experiments Physico-Mechanicall, Touching the Spring of the Air and Its Effects (1660). Boyle and Hooke discover several physical characteristics of air, including its role in combustion, respiration, and the transmission of sound. One of their findings, published in 1662, later becomes known as “Boyle’s law.” This law expresses the inverse relationship that exists between the pressure and volume of a gas, and it is determined by measuring the volume occupied by a constant quantity of air when compressed by differing weights of mercury.

Among Boyle’s most influential writings are The Sceptical Chymist (1661), which assails the then-current Aristotelian and especially Paracelsian notions about the composition of matter and methods of chemical analysis, and the Origine of Formes and Qualities (1666), which uses chemical phenomena to support the corpuscularian hypothesis. He argues so strongly for the need of applying the principles and methods of chemistry to the study of the natural world and to medicine that he later gains the appellation of the “father of chemistry.”

Boyle is a devout and pious Anglican who keenly champions his faith. He sponsors educational and missionary activities and writes a number of theological treatises. He is deeply concerned about the widespread perception that irreligion and atheism are on the rise, and he strives to demonstrate ways in which science and religion are mutually supportive. For Boyle, studying nature as a product of God’s handiwork is an inherently religious duty. He argues that this method of study would, in return, illuminate God’s omnipresence and goodness, thereby enhancing a scientist’s understanding of the divine. The Christian Virtuoso (1690) summarizes these views and may be seen as a manifesto of his own life as the model of a Christian scientist.

In 1668 Boyle leaves Oxford and takes up residence with his sister Katherine Jones, Vicountess Ranelagh, in her house on Pall Mall in London. There he sets up an active laboratory, employs assistants, receives visitors, and publishes at least one book nearly every year. Living in London also provides him the opportunity to participate actively in the Royal Society.

Boyle is a genial man who achieves both national and international renown during his lifetime. He is offered the presidency of the Royal Society and the episcopacy but declines both. Throughout his adult life, he is sickly, suffering from weak eyes and hands, recurring illnesses, and one or more strokes. He dies in London at age 64 on December 31, 1691 after a short illness exacerbated by his grief over Katherine’s death a week earlier. He leaves his papers to the Royal Society and a bequest for establishing a series of lectures in defense of Christianity. These lectures, now known as the Boyle Lectures, continue to this day.


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Birth of Physicist Daniel Joseph Bradley

Daniel Joseph Bradley, physicist and Emeritus Professor of Optical Electronics at Trinity College, Dublin, is born on January 18, 1928 in Derry, County Londonderry, Northern Ireland.

Bradley is one of four surviving children of John and Margaret Bradley, Lecky Road, Derry. He leaves school to work as a telegraph boy but returns to education at St. Columb’s College. Following training as a teacher at St. Mary’s Training College, Belfast, he qualifies in 1947. While teaching in a primary school in Derry he studies for a degree in mathematics as an external student of the University of London, and is awarded a degree in 1953.

Moving to London where he teaches mathematics in a grammar school, Bradley decides to register for an evening course at Birkbeck College. His first choice is mathematics but as he already has a degree in the subject the admissions staff suggests that he study physics. In 1957, after four years of part-time study, he is awarded a Bachelor of Science degree in physics by Birkbeck, achieving the highest marks in his final exams in the University of London overall. He next joins Royal Holloway College as an assistant lecturer and simultaneously enrolls as a PhD student, working on Fabry–Pérot interferometer etalon-based high-resolution spectroscopy supervised by Samuel Tolansky. He receives a PhD in 1961.

Bradley is a pioneer of laser physics, and his work on the development of ultra-fast pulsed lasers adds a new and vitally important element to the capabilities of this new type of light source. In particular, working on dye lasers, he produces pulses of light as short as one picosecond (one picosecond is to a second as a second is to 31,800 years). His work paves the way for the completely new field of non-linear optical interactions. In addition, he inspires a new generation of laser scientists in Ireland and the UK, many of whom are international leaders in their fields.

Appointed to a lectureship in the physics department at Imperial College London, Bradley sets up a research programme in UV solar spectroscopy using rocket technology to reach high altitudes.

In 1963 Bradley begins work in laser physics but returns to Royal Holloway College as a reader one year later. In 1966 he is appointed professor and head of department at Queen’s University, Belfast. There he quickly establishes a space research group of international standing to do high-resolution solar spectroscopy. He attracts significant funding from a variety of agencies, allowing him to build his department into one of the world’s leading laser research centres, involving a total of 65 scientists. However, he leaves Belfast because of fears for his family’s safety as political violence escalates in the early 1970s amidst The Troubles.

Bradley returns to Imperial College London in 1973 to a chair in laser physics and heads a group in optical physics, laser physics and space optics. He is head of the Physics department from 1976 to 1980 but is frustrated by cutbacks and a rule governing the ratio of senior to junior positions, one consequence of which is that he is unable to maintain a long-established chair in optical design. He is also critical of the college administration’s handling of some departmental grant applications. He resigns in 1980 and moves to Dublin.

Among Bradley’s many lasting contributions to laser research in the UK is the setting up of one of the world’s leading research facilities for laser research, the Central Laser Facility at the Rutherford Appleton Laboratory (RAL).

Arriving at Trinity College, Dublin, Bradley decides the time is ripe to move on from laser research and development into laser applications. In 1982, with Dr. John Kelly, a chemist, and Dr. David McConnell, a geneticist, he forms a team which wins funding for a project using laser techniques to explore the structure of organic molecules like DNA and proteins. Unfortunately, however, his work at Trinity is cut short by ill health and he retires in 1984. His research on semiconductor lasers is carried on and this work on developing widely tuneable lasers for optical communications systems continues.

A member of the Royal Irish Academy, Bradley is Fellow Emeritus of Trinity College Dublin, and holds fellowships of the Royal Society, The Optical Society of America and Institute of Physics. Through time the ravages of his illness restricts his travelling and eventually he is cared for in a residential home in Dublin, where he passes away on February 7, 2010.


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Birth of James Thomson, Engineer & Physicist

james-thomson

James Thomson, engineer and physicist whose reputation is substantial though overshadowed by that of his younger brother William Thomson (Lord Kelvin), is born in Belfast on February 16, 1822.

Thomson spends much of his youth in Glasgow. His father James is professor of mathematics at the University of Glasgow from 1832 onward. He attends Glasgow University from a young age and graduates in 1839 with high honors in his late teens. After graduation, he serves brief apprenticeships with practical engineers in several domains. He then gives a considerable amount of his time to theoretical and mathematical engineering studies, often in collaboration with his brother, during his twenties in Glasgow. In his late twenties he enters into private practice as a professional engineer with special expertise in water transport. In 1855, he is appointed professor of civil engineering at Queen’s University Belfast. He remains there until 1873, when he accepts the Regius professorship of Civil Engineering and Mechanics at the University of Glasgow in which he is successor to the influential William Rankine. He serves in this position until he resigns with failing eyesight in 1889.

In 1875 Thomson is elected a Fellow of the Royal Society of Edinburgh. His proposers are his younger brother William, Peter Guthrie Tait, Alexander Crum Brown and John Hutton Balfour. He is elected a Fellow of the Royal Society of London in June 1877. He serves as President of the Institution of Engineers and Shipbuilders in Scotland from 1884 to 1886.

Thomson dies of cholera in Glasgow on May 8, 1892. He is buried on the northern slopes of the Glasgow Necropolis overlooking Glasgow Cathedral. One obituary describes Thomson as “a man of singular purity of mind and simplicity of character,” whose “gentle kindness and unfailing courtesy will be long remembered.”

Thomson is known for his work on the improvement of water wheels, water pumps and turbines. He is also known for his innovations in the analysis of regelation, i.e., the effect of pressure on the freezing point of water, and his studies in glaciology including glacial motion, where he extends the work of James David Forbes. He studies the experimental work of his colleague Thomas Andrews concerning the continuity of the liquid and gaseous states of matter, and strengthens understanding of it by applying his strong knowledge of thermodynamics. He derives a simplified form of the Clapeyron equation for the solid-liquid phase boundary. He proposes the term triple point to describe the conditions for which solid, liquid and vapour states are all in equilibrium.

Thomson also makes contributions in the realm of fluid dynamics of rivers. It is claimed that the term torque is introduced into English scientific literature by Thomson in 1884.