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 constellationPegasus.
After some years of ill-health, Parsons dies on August 30, 1908, at Birr Castle and is buried in the local churchyard. He leaves a bequest to the Royal Society to establish the “Rosse Fund,” and a further £1,000 to the science school fund at TCD.
Stoney is born into an old-established Anglo-Irish scientific family at 40 Wellington Road, Ballsbridge, Dublin, on January 6, 1869. The daughter of George Johnstone Stoney, FRS, an eminent physicist who coins the term “electron” in 1891 as the “fundamental unit quantity of electricity,” and his wife and cousin, Margaret Sophia Stoney. One of her two brothers, George Gerald, is an engineer and a Fellow of the Royal Society (FRS). One of her two sisters, Florence Stoney, is a radiologist and receives an OBE. Her cousin is the Dublin-based physicist George Francis FitzGerald FRS (1851–1901), and her uncle Bindon Blood Stoney FRS is Engineer of Dublin Port, renowned for building a number of the main Dublin bridges and developing the Quayside.
Stoney demonstrates considerable mathematical talent and gains a scholarship at Newnham College, Cambridge, where she achieves a First in the Part I Tripos examination in 1893. However, she is not awarded a University of Cambridge degree as women are excluded from graduation until 1948. During her time at Newnham, she is in charge of the College telescope. She is later awarded a BA and an MA from Trinity College Dublin, after they accept women in 1904.
Following the 1876 Medical Act, it is illegal for academic institutions to prevent access to medical education based on gender. The first medical school for women in Britain is established in 1874 by Dr. Sophia Jex-Blake in anticipation of this law. The London School of Medicine for Women quickly becomes part of the University of London, with clinical teaching at the Royal Free Hospital. Stoney’s sister Florence is a student at the school, graduates in medicine with honours in 1895 (MB BS) and obtains her MD in 1898. Meanwhile, Stoney gains an appointment as a physics lecturer at the school in 1899. Her first tasks are to set up a physics laboratory and design the physics course. The laboratory is planned for 20 students, and the course content is pure physics, as required by university regulations. It includes mechanics, magnetism, electricity, optics, sound, heat and energy. In her obituary in The Lancet, an ex-student of hers notes: “Her lectures on physics mostly developed into informal talks, during which Miss Stoney, usually in a blue pinafore, scratched on a blackboard with coloured chalks, turning anxiously at intervals to ask ‘Have you taken my point?’. She was perhaps too good a mathematician … to understand the difficulties of the average medical student, but experience had taught her how distressing these could be”.
In 1901, the Royal Free Hospital appoints Florence into a new part-time position of medical electrician. The following April, the two sisters open a new x-ray service in the electrical department. During their time at the Royal Free Hospital, the two sisters actively support the women’s suffrage movement, though oppose the direct violent action with which it is later associated.
During her time at the school, Stoney also plays a central role in the British Federation of University Women (BFUW). She is elected treasurer, in her absence, at the first executive meeting on October 9, 1909, a position she holds until the end of May 1915. She becomes increasingly engaged with the political lobbying of the Federation. At the executive meeting on October 19, 1912, she proposes the names of two members for a subcommittee to secure the passing into law of a bill to enable women to become barristers, solicitors or parliamentary agents. The legislation is eventually enacted after the war within the Sex Disqualification (Removal) Act 1919.
Stoney resigns her post at the school in March 1915 and it is recorded that “with due regret and most unwillingly a change is desirable in the physics lectureship.” She is offered £300 on tendering her resignation.
Both Stoney and Florence offer their services to the British Red Cross at the War Office in London, to provide a radiological service to support the troops in Europe, on the day Britain declares war. Their offer is refused, because they are women. Florence sets up her own unit with the Women’s Imperial Service League and spends the next 6 months in Europe. Stoney organises supplies from London where she also serves on the League’s committee. Florence returns to London at the time Stoney resigns from the London School of Medicine for Women. She contacts the Scottish Women’s Hospitals (SWH), an organisation formed in 1914 to give medical support in the field of battle and financed by the women’s suffrage movement. The organisation has gained agreement to set up a new 250-bed tented hospital at Domaine de Chanteloup, Sainte-Savine, near Troyes (France), funded by the Cambridge women’s colleges of Girton and Newnham and it becomes her role to plan and operate the x-ray facilities. She establishes stereoscopy to localise bullets and shrapnel and introduces the use of x-rays in the diagnosis of gas gangrene, interstitial gas being a mandate for immediate amputation to give any chance of survival.
The hospital is near the front line and, in her own words, by September 1915, “the town had been evacuated, the station had been mined, and we heard the heavy guns ever going at nighttime.” The unit is entirely female, except for two part-time male drivers, and her technical assistant, Mr. Mallett.
They are assigned to the Corps Expéditionnaire d’Orient and ordered to move to Serbia. After boarding the steamship Mossoul in Marseille, they reach Salonika (known as Thessaloniki in modern Greece) on November 3, where they take the night train north to Ghevgheli (now Gevgelija in modern North Macedonia), on the Serbian side of the Greek border. They set up a hospital in an unused silk factory where they treat 100 patients with injuries ranging from frostbite to severe lung and head wounds. Following defeats at the hands of Bulgarian forces, Stoney and her staff retreat to Salonika by December 6, 1916. Eleven days later, they have re-established the hospital on a drained low swamp by the sea, and by New Year’s Day 1917 she has the lights on and the x-rays working. Despite the lack of equipment and resources, she establishes an electrotherapy department and various equipments for the muscular rehabilitation of the soldiers in their care. She also assists with problems on two British hospital ships, on which the x-ray systems have been damaged during a storm and gives support to the SWH unit in Ostrovo (now Arnissa on Lake Vegoritida formerly lake Ostrovo in Northern Greece), which arrives during September 1916. She has a break for sick leave in December 1917 and returns the following summer. She applies for an appointment as an army camp radiologist in Salonika, but her demand is blocked by the War Office.
In October 1917, Stoney returns to France to lead the x-ray departments at the SWH hospitals of Royaumont and Villers-Cotterêts. In March 1918, she has to supervise a camp closure and retreat for the third time, when Villers-Cotterêts is overrun by the German troops. During the final months of the war the fighting intensifies and there is a steep increase in workload. In the month of June alone the x-ray workload peaks at over 1,300, partly because of an increased use of fluoroscopy.
On returning to England, Stoney takes a post as lecturer in physics in the Household and Social Science department at King’s College for Women which she holds until retirement in 1925. After leaving King’s she moves to Bournemouth, where she lives with her sister Florence, who is suffering from spinal cancer, dying in 1932.
During her retirement, Stoney resumes her work with the BFUW for which she had acted as the first treasurer before the war. She becomes one of the earliest (and oldest) members of the Women’s Engineering Society and plays an active part in the organisation until shortly before her death. She travels widely and, in 1934, she speaks to the Australian Federation of University Women on the subject of women in engineering, highlighting the contribution made by women workers during the war. In 1936, she establishes the Johnstone and Florence Stoney Studentship in the BFUW, for “research in biological, geological, meteorological or radiological science undertaken preferably in Australia, New Zealand or South Africa.” The studentship is now administered by Newnham College, Cambridge, and supports clinical medical students going abroad for their elective period. The declaration of Trust is dated February 11, 1942 and the Johnstone And Florence Stoney Studentship Fund Charity is registered on March 25, 1976.
Stoney dies on June 25, 1938, at age 69, and obituaries are printed in both the scientific and medical press – Nature, The Lancet, The Woman Engineer and national newspapers in England, The Times and Australia.
Stoney is remembered for her considerable bravery and resourcefulness in the face of extreme danger, and her imagination in contributing to clinical care under the most difficult conditions of war. As a strong advocate of education for women, she enables young graduate women to spend time on research overseas and another to enable physicists to enter medical school thanks to the fund she created. Through her work and engagements, she is remembered as a pioneer of medical physics.
(Pictured: Edith Anne Stoney during her time in Cambridge in the early 1890s)
Purser is born in Dublin on August 24, 1835, the son of John Tertius Purser (1809–1893), the general manager of the well-known A Guinness, Son & Co. brewery, and Anna Benigna Fridlezius (1803-1881). He is educated in a wealthy family, which includes artists, as his cousin Sarah Purser, or engineers, as his brother-in-law John Purser Griffith. He is the brother of mathematician Frederick Purser. He receives his early education at the private boarding school run by his uncle, Dr. Richard W. Biggs, at Devizes, Wiltshire. He completes his schooling at Devizes and begins his university studies at Trinity College, Dublin, graduating BA in mathematics in 1856. He is the best mathematician of his year at the University and in 1855 he gains the Lloyd Exhibition.
Purser becomes a tutor to the four sons of William Parsons, 3rd Earl of Rosse (1800-1867) in 1857. Lord Rosse’s 72-inch reflecting telescope, built in 1845 and colloquially known of as the “Leviathan of Parsonstown,” is the world’s largest telescope when it is built and continues to hold this distinction until the early 20th century. As well as acting as tutor to the children, Purser does become involved in Lord Rosse’s interest in astronomy but never does any observing.
In 1863, Purser is appointed professor of mathematics at Queen’s College, Belfast, a position he maintains until his retirement in 1901.
Purser never marries. When his father dies on April 5, 1893, Rathmines Castle passes to him. He dies at Rathmines Castle on October 18, 1903, a very wealthy man. In his will he leaves £100,000 to his brother Frederick Purser, £40,000 to his sister Anna Griffith and £5,000 to each of her children. In addition to the money, he owns property in Blessington Street, Essex Street and Eustace Street which he leaves to his brother-in-law John Purser Griffith. Other properties and interests that he owns he divides between his brother Frederick and his sister Anna. After his death, his sister Anna and her husband John Purser Griffith move into Rathmines Castle although, at this time, its ownership has gone to Frederick Purser. After Frederick dies in August 1910, the Castle and his considerable wealth passes to Anna.
(Pictured: Portrait of John Purser painted by the artist Sarah Purser, daughter of Tertius Purser’s brother Benjamin Purser. The portrait hangs in Queen’s College, Belfast.)
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 mathematicianWilliam 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:
Parsons is born in London on June 13, 1854, the youngest among eleven children of the famous astronomerWilliam Parsons, 3rd Earl of Rosse, of Parsonstown (now Birr), King’s County (now County Offaly) and Mary Parsons (née Field), a Yorkshire heiress. Only four sons survive to adulthood. He is strongly influenced by his father, who encourages him to use the workshops at the Birr Castleobservatory, and he is tutored at home by some of the assistant astronomers before entering Trinity College Dublin in 1871. He transfers to St. John’s College, Cambridge, and upon graduation in 1877 as eleventh wrangler in a class of thirty-six studying mathematics, he takes the unusual step for the son of an earl, of becoming a premium apprentice at the Elswick Engine and Ordnance Works of Sir William George Armstrong at Newcastle upon Tyne. In the period following this he develops a unique high-speed steam engine, and a torpedo which is powered by a gas turbine. He joins Clarke Chapman at Gateshead as a partner in 1884. In a matter of months he files patents for the world’s first effective steam turbine. These embody many novelties, but the key feature is an electricity generator rated at 6 kW and designed to run, directly coupled, at the astonishing speed of 18,000 rpm.
Parsons is not satisfied that his partners’ efforts to promote turbine development are sufficiently aggressive, and in 1889 he leaves to establish his own company, C. A. Parsons & Company, at Heaton near Newcastle upon Tyne. The price of this impetuous action is the loss of access to his original patents. He quickly establishes alternative designs and by 1892 he has built a turbo-alternator with an output of 100 kW for the Cambridge Electricity Company. Exhausting to a condenser, it has a steam consumption comparable with the best steam engines. Even his 1884 patents envisage applying turbines to marine propulsion, but it is 1893 before he can embark on the design of a suitable demonstration boat of 40 tons. By using careful tests on models, he perfects the hull shape and predicts the power requirements. At this time he recovers his 1884 patents and even wins the very rare prize of an extension for five years, which is a measure of the perceived national importance of his invention.
A syndicate is formed to raise the capital necessary to build Parsons’s turbine-powered vessel Turbinia. At the SpitheadFleet Review in 1897 she speeds among the ships of the world’s navies at 34.5 knots. In 1905 the Royal Navy decides to adopt turbines for its future warships. This example is followed by navies worldwide, from the United States to Japan. Builders of mercantile vessels follow quickly and the turbines of the Cunard liner RMS Mauretania (1906), each developing 26,000 kW, are the largest in existence at the time. The Mauretania holds the Blue Riband for the speediest Atlantic crossing until 1929, a fact that keeps Parsons’s name before the public.
The firm of C. A. Parsons (1889), which builds turbines for use on land, is privately owned, but the Parsons Marine Steam Turbine Company (1897) is a public company. Parsons also earns income from over 300 patents through the Parsons Foreign Patents Co. (1899). He readily licenses others to use his patents but he avoides costly litigation, the ruin of many inventors.
Parsons inherits an interest in optical instruments from his father. In 1890 he develops a cost-effective method for manufacturing searchlight mirrors, using sheets of plate glass and an iron mold heated in a gas furnace. During World War I he supplies most of the national requirements. In 1921 he acquires the optical instrument manufacturers Ross Ltd. and the Derby Crown Glass Company, makers of optical quality glass. In 1925 the firm of Howard Grubb, which makes large optical telescopes, is rescued from insolvency by Parsons. He believes that it is of national importance to maintain the industrial capacity to make optical equipment. Not all of his projects are commercially profitable, as for example his acoustic amplifier, dubbed the “Auxetophone,” or his attempts at synthesising diamonds, which absorbs much time and effort. In the development of his many inventions, he displays great tenacity in the face of reverses and always employs a meticulously scientific approach.
The supply of power on a large scale is revolutionised by the steam turbine. During the twenty years following the building of his first turbogenerator, Parsons remains at the forefront of promoting, building, and selling ever larger and more efficient turbines. He is not only a scientific engineer and inventor, but also a successful manufacturer and businessman. Modest and retiring in manner, his chief weakness lay in a lack of skill in managing interpersonal relationships, though this is compensated to a large extent by his integrity and loyalty. He seeks out the ablest men to run his businesses, among them several Fellows of the Royal Society (FRS). He is elected FRS himself in 1898 and is knighted in 1911. In 1927 he becomes the first engineer to be awarded the Order of Merit for his outstanding contributions to society. He is honoured by many universities and institutions in Europe and the United States.
Parsons marries Katharine Bethell, a Yorkshire woman, in 1883. They have one daughter and a son who dies on active service in 1918. He keeps a residence in London and in Northumbria.
Parsons dies on February 11, 1931, on board the steamship Duchess of Richmond while on a cruise with his wife. The cause of death is given as neuritis. A memorial service is held at Westminster Abbey on March 3, 1931. He is buried in the parish church of St. Bartholomew’s in Kirkwhelpington in Northumberland. His estate is valued at £1,214,355 gross.
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 physicistDavid 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.
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.
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 constellationPegasus.
Purser is the son of John Tertius Purser (1809–1893), the general manager of the well known A Guinness, Son & Co. brewery, and Anna Benigna Fridlezius (1803-1881). He is educated in a wealthy family, which includes artists, as his cousin Sarah Purser, or engineers, as his brother-in-law John Purser Griffith. He is the brother of mathematician Frederick Purser. He receives his early education at the private boarding school run by his uncle, Dr. Richard W. Biggs, at Devizes, Wiltshire. He completes his schooling at Devizes and begins his university studies at Trinity College, Dublin, graduating BA in mathematics in 1856. He is the best mathematician of his year at the University and in 1855 he gains the Lloyd Exhibition.
Purser becomes a tutor to the four sons of William Parsons, 3rd Earl of Rosse (1800-1867) in 1857. Lord Rosse’s 72-inch reflecting telescope, built in 1845 and colloquially known of as the “Leviathan of Parsonstown,” is the world’s largest telescope when it is built and continues to hold this distinction until the early 20th century. As well as acting as tutor to the children, Purser does become involved in Lord Rosse’s interest in astronomy but never does any observing.
In 1863, Purser is appointed professor of mathematics at Queen’s College, Belfast, a position he maintains until his retirement in 1901.
Purser never marries. When his father dies on April 5, 1893, Rathmines Castle passes to him. He dies at Rathmines Castle on October 18, 1903, a very wealthy man. In his will he leaves £100,000 to his brother Frederick Purser, £40,000 to his sister Anna Griffith and £5,000 to each of her children. In addition to the money, he owns property in Blessington Street, Essex Street and Eustace Street which he leaves to his brother-in-law John Purser Griffith. Other properties and interests that he owns he divides between his brother Frederick and his sister Anna. After his death, his sister Anna and her husband John Purser Griffith move into Rathmines Castle although, at this time, its ownership has gone to Frederick Purser. After Frederick dies in August 1910, the Castle and his considerable wealth passes to Anna.
(Pictured: Portrait of John Purser painted by the artist Sarah Purser, daughter of Tertius Purser’s brother Benjamin Purser. The portrait hangs in Queen’s College, Belfast.)
William Parsons, 3rd Earl of Rosse, Anglo-Irishastronomer, 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 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.
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’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.
Mary 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.
seamus dubhghaill 