seamus dubhghaill

Promoting Irish Culture and History from Little Rock, Arkansas, USA

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Birth of Sir Hans Sloane, Physician & Naturalist

Generated by IIPImageSir Hans Sloane, Irish physician and naturalist whose collection of books, manuscripts, and curiosities form the basis for the British Museum in London, is born on April 16, 1660 in Killyleagh, County Down in what is now Northern Ireland.

As a child Sloane possesses a strong curiosity of nature, and he develops a particular interest in plants. After studying medicine in London, he travels in France, taking an M.D. degree at the University of Orange in 1683. In 1685 he returns to London and is elected a fellow of the Royal Society. He proceeds to practice medicine as an assistant to British physician Thomas Sydenham. He is made a fellow of the Royal College of Physicians in 1687. That same year he accepts an opportunity to visit Jamaica, traveling as personal physician to the Christopher Monck, 2nd Duke of Albermarle, who had been appointed to govern the island.

The journey to Jamaica provides Sloane with the chance to pursue his interest in the natural sciences. During the 15 months of his travels, he visits multiple islands in the West Indies, including Saint Kitts, Nevis, and Barbados. He ultimately collects specimens of about 800 plants. He also records information on and collects specimens of various fish, mollusks, and insects, and he observes the local peoples and contemplates the natural phenomena of the area. His observations and the specimens he collects during the voyage lay the foundation for his later contributions to botany and zoology and for his role in the formation of the British Museum. He returns to England in 1689, his trip having been cut short by Monck’s death. His collection of plants from the West Indies is one of the first from that region to reach England.

Sloane’s trip to Jamaica also leads to his invention of a milk chocolate beverage. While on the island, he encounters a local drink made from a cacao plant. The beverage apparently makes him nauseous. To avoid this, he decides to mix the cacao material with milk. He finds this concoction to be not only more tolerable but also tasty and healthy. Shortly after his return to England, his milk-based concoction is sold by apothecaries as a medicinal product. His recipe later forms the basis for a milk chocolate product manufactured by Cadbury.

In 1696 Sloane publishes in Latin an elaborate catalogue, Catalogus Plantarum Quae in Insula Jamaica, on the plants he collected in Jamaica. He later publishes Natural History of Jamaica (2 Vol., 1707 and 1725), a comprehensive account of his studies of the natural phenomena of the island country.

Sloane also makes important contributions to medicine. He is physician to Queen Anne, King George I, and King George II. He is created a baronet in 1716, becoming the first medical practitioner to receive a hereditary title. He is relatively progressive as a physician, and, while serving George I, he adopts the practice of inoculation against smallpox for members of the royal family. In 1719 he is elected president of the Royal College of Physicians, a post he serves until 1735. In 1727 he becomes president of the Royal Society, succeeding physicist and mathematician Sir Isaac Newton. He holds the position until 1741. He earns a reputation as a specialist in eye diseases, and he eventually publishes Account of a Medicine for Soreness, Weakness and Other Distempers of the Eyes (1745).

Sloane is also known as an avid collector, and he benefits greatly from the acquisition of the cabinets of other collectors, including amateur scientist William Charleton and English apothecary and botanist James Petiver. When he retires from active work in 1741, his library and cabinet of curiosities has grown to be of unique value, and on his death he bequeaths his collection to the nation, on condition that parliament pay his executors £20,000. The bequest is accepted and goes to form the collection opened to the public as the British Museum in 1759.

Sloane has no son that survives beyond infancy, and the baronetcy becomes extinct upon his death in London on January 11, 1753.

(From: Encyclopaedia Britannica,


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Death of Robert Boyle, Philosopher & Writer

robert-boyleRobert Boyle, Anglo-Irish natural philosopher, theological writer, chemist, physicist, inventor and a preeminent figure of 17th-century intellectual culture, dies on December 31, 1691 in London.

Boyle is born on January 25, 1627 at Lismore Castle, in County Waterford. At age eight, he 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 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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Death of Thomas Andrews, Chemist & Physicist

thomas-andrewsThomas Andrews, chemist and physicist who does important work on phase transitions between gases and liquids, dies in Belfast on November 26, 1885. He is a longtime professor of chemistry at Queen’s University Belfast.

Andrews is born in Belfast on December 19, 1813, where his 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 the 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 Royal Belfast Academical Institution. In 1842, he marries Jane Hardie Walker. They have six children, including the geologist Mary Andrews.

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. In 1845 he is appointed vice-president and professor of chemistry of the newly established Queen’s University Belfast. He holds these two offices until his retirement in 1879 at the age of 66.

His 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 and nitrogen.

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

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Birth of Physicist John Joly

John Joly, Irish physicist famous for his development of radiation therapy in the treatment of cancer, is born in Bracknagh, County Offaly, on November 1, 1857. He is also known for developing techniques to accurately estimate the age of a geological period, based on radioactive elements present in minerals.

Joly is a second cousin of Charles Jasper Joly, the astronomer. He enters Trinity College, Dublin in 1876, graduating in Engineering in 1882 in first place with various special certificates in branches of engineering, at the same time obtaining a First-Class Honours in modern literature. He works as a demonstrator in Trinity’s Engineering and Physics departments before succeeding William Johnson Sollas in the Chair of Geology and Mineralogy in 1897, a position which he holds until his death in 1933.

Joly joins the Royal Dublin Society in 1881 while still a student, and is a frequent contributor of papers. During his career he writes over 270 books and scientific papers.

On May 17, 1899 Joly reads his paper “An Estimate of the Geological Age of the Earth” to the Royal Dublin Society. In it, he proposes to calculate the age of the earth from the accumulation of sodium in the waters of the oceans. He calculates the rate at which the oceans should have accumulated sodium from erosion processes, and determines that the oceans are about 80 to 100 million years old. The paper is quickly published, appearing four months later in the Society’s Scientific Transactions. Although this method is later considered inaccurate and is consequently superseded, it radically modifies the results of other methods in use at the time.

In 1903 he publishes an article in Nature in which he discusses the possibility of using radium to date the Earth and goes on to study the radioactive content of the Earth’s crust to formulate a theory of thermal cycles, and examines the radioactive constituents of certain rocks as a means of calculating their age. Working in collaboration with Sir Ernest Rutherford, he uses radioactive decay in minerals to estimate, in 1913, that the beginning of the Devonian period could not be less than 400 million years ago, an estimate which is in line with modern calculations.

Joly serves as President of Section C (Geology) when the British Association for the Advancement of Science meets in Dublin in 1908, during which he presents his paper “Uranium and Geology” in an address to the society. This work describes radioactive materials in rocks and their part in the generation of the Earth’s internal heat.

Along with his friend Henry Horatio Dixon, Joly also puts forward the cohesion-tension theory which is now thought to be the main mechanism for the upward movement of water in plants.

In 1914 Joly develops a method of extracting radium and applies it in the treatment of cancer. As a Governor of Dr. Steevens’ Hospital in Dublin, in collaboration with Walter Stevenson, he devises radiation therapy methods and promotes the establishment by the Royal Dublin Society of the Irish Radium Institute where they pioneer the “Dublin method” of using a hollow needle for deep radiation therapy, a technique that later enters worldwide use. The Radium Institute also supplies capillary tubes containing radon to hospitals for some years for use in the treatment of tumours.

Joly is elected a Fellow of the Royal Society of London in 1892, is awarded the Boyle Medal of the Royal Dublin Society in 1911, the Royal Medal of the Royal Society of London in 1910, and the Murchison Medal of the Geological Society of London in 1923. He is also conferred honorary degrees by the National University of Ireland, the University of Cambridge, and the University of Michigan. After his death in 1933, his friends subscribe the sum of £1,700 to set up a memorial fund which is still used to promote the annual Joly Memorial Lectures at the University of Dublin, which were inaugurated by Sir Ernest Rutherford in 1935. He is also remembered by the Joly Geological Society, a student geological association established in 1960.

In 1973 a crater on Mars is named in Joly’s honour.

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Birth of Charles Boyle, 4th Earl of Orrery

Charles Boyle, 4th Earl of Orrery, English nobleman, statesman and patron of the sciences, is born in Little Chelsea, London on July 28, 1674.

Boyle is the second son of Roger Boyle, 2nd Earl of Orrery, and his wife Lady Mary Sackville, daughter of Richard Sackville, 5th Earl of Dorset. He is educated at Christ Church, Oxford, and soon distinguishes himself by his learning and abilities. Like the first earl, he is an author, soldier and statesman. He translates Plutarch‘s life of Lysander, and publishes an edition of the epistles of Phalaris, which engages him in the famous controversy with Richard Bentley. He is a member of the Parliament of Ireland and sits for the Charleville constituency between 1695 and 1699. He is three times member for the town of Huntingdon and, upon the death of his brother, Lionel, 3rd earl, in 1703, he succeeds to the title.

Boyle enters the army, and in 1709 is raised to the rank of major-general and sworn one of Her Majesty’s Privy Council. He is appointed to the Order of the Thistle and appointed queen’s envoy to the states of Brabant and Flanders. Having discharged this trust with ability, he is created an English peer, as Baron Boyle of Marston, in Somerset. He inherits the estate in 1714.

Boyle becomes a Fellow of the Royal Society in 1706. In 1713, under the patronage of Boyle, clockmaker George Graham creates the first mechanical solar system model that can demonstrate proportional motion of the planets around the Sun. The device is named the orrery in the Earl’s honour.

Boyle receives several additional honours in the reign of George I but, having had the misfortune to fall under the suspicion of the government for playing a part in the Jacobite Atterbury Plot, he is committed to the Tower of London in 1722, where he remains six months, and is then admitted to bail. On a subsequent inquiry he is discharged.

Boyle writes a comedy, As you find it, printed in 1703 and later publishes together with the plays of the first earl. In 1728, he is listed as one of the subscribers to the Cyclopaedia of Ephraim Chambers.

Charles Boyle dies at his home in Westminster on August 28, 1731 and is buried in Westminster Abbey. He bequeaths his personal library and collection of scientific instruments to Christ Church Library. The instruments are now on display in the Museum of the History of Science, Oxford.

Boyle’s son John, the 5th Earl of Orrery, succeeds to the earldom of Cork on the failure of the elder branch of the Boyle family, as earl of Cork and Orrery.

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Death of Mary Ward, First Motor Vehicle Fatality

mary-wardMary Ward, Anglo-Irish amateur scientist, is killed on August 31, 1869, when she falls under the wheels of an experimental steam car built by her cousins. As the event occurs in 1869, she is the world’s first person known to be killed by a motor vehicle.

During the 19th century, when most women have little encouragement for a science education, Mary is unusual. She is born Mary King in present-day Ferbane, County Offaly on April 27, 1827, the youngest child of Henry and Harriett King. 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.

Universities and most societies do not accept women, but Mary obtains information any way she can. She writes frequently to scientists, asking them about papers they have published. During 1848, her cousin William Parsons, 3rd Earl of Rosse, is made President of the Royal Society, enabling her to meet many scientists during visits to his home.

Parsons’ sons build a steam-powered car. It is thought at the time that steam transport will be developed greatly during the near future. This becomes true for trains, but does not become true for cars due to the development of internal combustion engine. Steam cars are heavy and they do too much damage to the already uneven roads. In 1865, the Red Flag Acts imposes a speed limit of four miles per hour for the countryside and two miles per hour in towns. This effectively ends the popularity of motorcars, but some enthusiasts still have one, often homemade, like the Parsons’ vehicle.

On August 31, 1869, Mary and her husband, Henry, are travelling in it with the Parsons boys, Richard Clare 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, 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.

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Birth of Mathematician George Gabriel Stokes

george-gabriel-stokesSir George Gabriel Stokes, mathematician, physicist, politician, and theologian, is born into an evangelical Protestant family in Skreen, County Sligo, on August 13, 1819. After attending schools in Skreen, Dublin, and Bristol, he matriculates in 1837 at Pembroke College, Cambridge.

In 1849, Stokes is appointed to the Lucasian professorship of mathematics at Cambridge, a position he holds until his death in 1903. In physics, Stokes makes seminal contributions to fluid dynamics, including the Navier–Stokes equations, and to physical optics. In mathematics he formulates the first version of what is now known as Stokes’ theorem and contributes to the theory of asymptotic expansions.

On June 1, 1899, the jubilee of his appointment is celebrated in a ceremony which is attended by numerous delegates from European and American universities. A commemorative gold medal is presented to Stokes by the chancellor of the university, and marble busts of Stokes by Hamo Thornycroft are formally offered to Pembroke College and to the university by Lord Kelvin.

Stokes, who is made a baronet in 1889, further serves his university by representing it in parliament from 1887 to 1892 as one of the two members for the Cambridge University constituency. During a portion of this period (1885–1890) he also serves as president of the Royal Society, of which he has been one of the secretaries since 1854. Since he is also Lucasian Professor at this time, Stokes is the first person to hold all three positions simultaneously.

Stokes dies on Feb. 1, 1903, at his cottage in Cambridge, Cambridgeshire, England. He is buried in the Mill Road Cemetery.