Robert Boyle was born in Lismore Castle, in County Waterford, Ireland, the seventh son and fourteenth child of Richard Boyle, 1st Earl of Cork and his second wife, Catherine Fenton.
His father Richard Boyle arrived in Dublin from England in 1588 during the Tudor plantations of Ireland and obtained an appointment as a deputy escheator. He had amassed enormous landholdings by the time Robert was born. Catherine Fenton was the daughter of Sir Geoffrey Fenton, the former Secretary of State for Ireland, who was born in Dublin in 1539, and Alice Weston, the daughter of Robert Weston, who was born in Lismore in 1541.
As a child, Boyle was fostered to a local family, as were his elder brothers. Consequently, the eldest of the Boyle children had sufficient Irish at four years of age to act as a translator for his father. Boyle received private tutoring in Latin, Greek and French and when he was eight years old, following the death of his mother, he was sent to Eton College in England. His father's friend, Sir Henry Wotton, was then the provost of the college.
During this time, his father hired a private tutor, Robert Carew, who had knowledge of Irish, to act as private tutor to his sons in Eton. However, "only Mr. Robert sometimes desires it [Irish] and is a little entered in it", but despite the "many reasons" given by Carew to turn their attentions to it, "they practice the French and Latin but they affect not the Irish". After spending over three years at Eton, Robert travelled abroad with a French tutor. They visited Italy in 1641 and remained in Florence during the winter of that year studying the "paradoxes of the great star-gazer" Galileo Galilei, who was elderly but still living in 1641.
Boyle returned to England from continental Europe in mid-1644 with a keen interest in scientific research. His father had died the previous year and had left him the manor of Stalbridge in Dorset, England and substantial estates in County Limerick in Ireland that he had acquired. From that time, Robert devoted his life to scientific research and soon took a prominent place in the band of enquirers, known as the "Invisible College", who devoted themselves to the cultivation of the "new philosophy". They met frequently in London, often at Gresham College, and some of the members also had meetings at Oxford.
Having made several visits to his Irish estates beginning in 1647, Robert moved to Ireland in 1652 but became frustrated at his inability to make progress in his chemical work. In one letter, he described Ireland as "a barbarous country where chemical spirits were so misunderstood and chemical instruments so unprocurable that it was hard to have any Hermetic thoughts in it."
In 1654, Boyle left Ireland for Oxford to pursue his work more successfully. An inscription can be found on the wall of University College, Oxford the High Street at Oxford (now the location of the Shelley Memorial), marking the spot where Cross Hall stood until the early 19th century. It was here that Boyle rented rooms from the wealthy apothecary who owned the Hall.
Reading in 1657 of Otto von Guericke's air pump, he set himself with the assistance of Robert Hooke to devise improvements in its construction, and with the result, the "machina Boyleana" or "Pneumatical Engine", finished in 1659, he began a series of experiments on the properties of air. An account of Boyle's work with the air pump was published in 1660 under the title New Experiments Physico-Mechanicall, Touching the Spring of the Air, and its Effects.
Among the critics of the views put forward in this book was a Jesuit, Francis Line (1595–1675), and it was while answering his objections that Boyle made his first mention of the law that the volume of a gas varies inversely to the pressure of the gas, which among English-speaking people is usually called Boyle's Law after his name. The person that originally formulated the hypothesis was Henry Power in 1661. Boyle in 1662 included a reference to a paper written by Power, but mistakenly attributed it to Richard Towneley. In continental Europe the hypothesis is sometimes attributed to Edme Mariotte, although he did not publish it until 1676 and was likely aware of Boyle's work at the time.
One of Robert Boyle's notebooks (1690-1691) is held by the Royal Society of London. The Royal Society archives holds 46 volumes of philosophical, scientific and theological papers by Boyle and seven volumes of his correspondence. In 1663 the Invisible College became the The Royal Society of London for Improving Natural Knowledge, and the charter of incorporation granted by Charles II of England, named Boyle a member of the council. In 1680 he was elected president of the society, but declined the honour from a scruple about oaths.
He made a "wish list" of 24 possible inventions which included "the prolongation of life", the "art of flying", "perpetual light", "making armor light and extremely hard", "a ship to sail with all winds, and a ship not to be sunk", "practicable and certain way of finding longitudes", "potent drugs to alter or exalt imagination, waking, memory and other functions and appease pain, procure innocent sleep, harmless dreams, etc". They are extraordinary because all but a few of the 24 have come true.
It was during his time at Oxford that Boyle was a Chevalier. The Chevaliers are thought to have been established by royal order a few years before Boyle's time at Oxford. The early part of Boyle's residence was marked by the actions of the victorious parliamentarian forces, consequently this period marked the most secretive period of Chevalier movements and thus little is known about Boyle's involvement beyond his membership.
In 1668 he left Oxford for London where he resided at the house of his elder sister Katherine Jones, Lady Ranelagh, in Pall Mall. His contemporaries widely acknowledged Katherine's influence on his work, but later historiographies dropped her from the record. Theirs was "a lifelong intellectual partnership, where brother and sister shared medical remedies, promoted each others scientific ideas, and edited each others manuscripts."
In 1689 his health, never very strong, began to fail seriously and he gradually withdrew from his public engagements, ceasing his communications to the Royal Society, and advertising his desire to be excused from receiving guests, "unless upon occasions very extraordinary", on Tuesday and Friday forenoon, and Wednesday and Saturday afternoon. In the leisure thus gained he wished to "recruit his spirits, range his papers", and prepare some important chemical investigations which he proposed to leave "as a kind of Hermetic legacy to the studious disciples of that art", but of which he did not make known the nature. His health became still worse in 1691, and he died on 31 December that year, just a week after the death of the sister with whom he had lived for more than twenty years. Boyle died from paralysis. He was buried in the churchyard of St Martin-in-the-Fields, his funeral sermon being preached by his friend Bishop Gilbert Burnet. In his will, Boyle endowed a series of Lectures which came to be known as the Boyle Lectures.
Boyle's great merit as a scientific investigator is that he carried out the principles which Francis Bacon espoused in the Novum Organum. Yet he would not avow himself a follower of Bacon, or indeed of any other teacher. On several occasions he mentions that to keep his judgment as unprepossessed as might be with any of the modern theories of philosophy, until he was "provided of experiments" to help him judge of them, he refrained from any study of the Atomical and the Cartesian systems, and even of the Novum Organum itself, though he admits to "transiently consulting" them about a few particulars. Nothing was more alien to his mental temperament than the spinning of hypotheses. He regarded the acquisition of knowledge as an end in itself, and in consequence he gained a wider outlook on the aims of scientific inquiry than had been enjoyed by his predecessors for many centuries. This, however, did not mean that he paid no attention to the practical application of science nor that he despised knowledge which tended to use.
Boyle was an alchemist; and believing the transmutation of metals to be a possibility, he carried out experiments in the hope of achieving it; and he was instrumental in obtaining the repeal, in 1689, of the statute of Henry IV against multiplying gold and silver. With all the important work he accomplished in physics – the enunciation of Boyle's law, the discovery of the part taken by air in the propagation of sound, and investigations on the expansive force of freezing water, on specific gravities and refractive powers, on crystals, on electricity, on color, on hydrostatics, etc. – chemistry was his peculiar and favorite study. His first book on the subject was The Sceptical Chymist, published in 1661, in which he criticized the "experiments whereby vulgar Spagyrists are wont to endeavor to evince their Salt, Sulphur and Mercury to be the true Principles of Things." For him chemistry was the science of the composition of substances, not merely an adjunct to the arts of the alchemist or the physician. He endorsed the view of elements as the undecomposable constituents of material bodies; and made the distinction between mixtures and compounds. He made considerable progress in the technique of detecting their ingredients, a process which he designated by the term "analysis". He further supposed that the elements were ultimately composed of particles of various sorts and sizes, into which, however, they were not to be resolved in any known way. He studied the chemistry of combustion and of respiration, and conducted experiments in physiology, where, however, he was hampered by the "tenderness of his nature" which kept him from anatomical dissections, especially vivisections, though he knew them to be "most instructing"
In addition to philosophy, Boyle devoted much time to theology, showing a very decided leaning to the practical side and an indifference to controversial polemics. At the Restoration of the king in 1660 he was favorably received at court, and in 1665 would have received the provostship of Eton College, if he would have taken orders; but this he refused to do on the ground that his writings on religious subjects would have greater weight coming from a layman than a paid minister of the Church.
As a director of the East India Company he spent large sums in promoting the spread of Christianity in the East, contributing liberally to missionary societies and to the expenses of translating the Bible or portions of it into various languages. Boyle supported the policy that the Bible should be available in the vernacular language of the people (in contrast to the Latin-only policy of the Roman Catholic Church at the time). An Irish language version of the New Testament was published in 1602 but was rare in Boyle's adult life. In 1680—1685 Boyle personally financed the printing of the Bible, both Old and New Testaments, in Irish. In this respect, Boyle's attitude to the Irish language differed from the English Ascendancy class in Ireland at the time, which was generally hostile to the language and largely opposed the use of Irish (not only as a language of religious worship).
Boyle also had a monogenist perspective about race origin. He was a pioneer studying races, and he believed that all human beings, (no matter how diverse their physical differences), came from the same source: Adam and Eve. He studied reported stories of parents' giving birth to different coloured albinos, so he concluded that Adam and Eve were originally white and that Caucasians could give birth to different coloured races. Theories of Robert Hooke and Isaac Newton about color and light via optical projection (in physics), were also extended by Robert Boyle into discourses of polygenesis, speculating that maybe these differences were due to "seminal impressions". Taking this into account, it might be considered that he envisioned a good explanation for complexion at his time, due to the fact that now we know that skin color is disposed by genes, which are actually contained in the semen. Boyle's writings mention that at his time, for "European Eyes", beauty was not measured so much in color of skin, but in "stature, comely symmetry of the parts of the body, and good features in the face". Various members of the scientific community rejected his views and described them as "disturbing" or "amusing".
In his Will, Boyle provided money for a series of lectures to defend the Christian religion against those he considered "notorious infidels, namely atheists, deists, pagans, Jews and Muslims", with the provision that controversies between Christians were not to be mentioned (see Boyle Lectures)
The following are some of the more important of his works:
1660 – New Experiments Physico-Mechanical: Touching the Spring of the Air and their Effects 1661 – The Sceptical Chymist 1663 – Considerations touching the Usefulness of Experimental Natural Philosophy (followed by a second part in 1671) 1664 – Experiments and Considerations Touching Colours, with Observations on a Diamond that Shines in the Dark 1665 – New Experiments and Observations upon Cold 1666 – Hydrostatical Paradoxes 1666 – Origin of Forms and Qualities according to the Corpuscular Philosophy 1669 – a continuation of his work on the spring of air 1670 – demonstrated that a reduction in ambient pressure could lead to bubble formation in living tissue. This description of a viper in a vacuum was the first recorded description of decompression sickness. 1670 – tracts about the Cosmical Qualities of Things, the Temperature of the Subterraneal and Submarine Regions, the Bottom of the Sea, &c. with an Introduction to the History of Particular Qualities 1672 – Origin and Virtues of Gems 1673 – Essays of the Strange Subtilty, Great Efficacy, Determinate Nature of Effluviums 1674 – two volumes of tracts on the Saltiness of the Sea, Suspicions about the Hidden Realities of the Air, Cold, Celestial Magnets, Animadversions on Hobbes's Problemata de Vacuo 1676 – Experiments and Notes about the Mechanical Origin or Production of Particular Qualities, including some notes on electricity and magnetism 1678 – Observations upon an artificial Substance that Shines without any Preceding Illustration 1680 – the Aerial Noctiluca 1682 – New Experiments and Observations upon the Icy Noctiluca 1682 – a further continuation of his work on the air 1684 – Memoirs for the Natural History of the Human Blood 1685 – Short Memoirs for the Natural Experimental History of Mineral Waters 1686 – A Free Enquiry into the Vulgarly Received Notion of Nature 1690 – Medicina Hydrostatica 1691 – Experimentae et Observationes Physicae Among his religious and philosophical writings were:
1648/1660 – Seraphic Love, written in 1648, but not published until 1660 1663 – An Essay upon the Style of the Holy Scriptures 1664 – Excellence of Theology compared with Natural Philosophy 1665 – Occasional Reflections upon Several Subjects, which was ridiculed by Swift in Meditation Upon a Broomstick, and by Butler in An Occasional Reflection on Dr Charlton's Feeling a Dog's Pulse at Gresham College 1675 – Some Considerations about the Reconcileableness of Reason and Religion, with a Discourse about the Possibility of the Resurrection 1687 – The Martyrdom of Theodora And Didymus 1690 – The Christian Virtuoso
During his lifetime, Boyle published over forty books. An influential collected edition of his works by the antiquary, Thomas Birch, was published in 1744. 
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