Sir Isaac Newton and His Madness of 1692-93

Celestial bodies and urinary stones: Isaac Newton (1641–1727) – health and urological problems

“…In the 1670s Newton became a Fellow of The Royal Society, based on his work in developing the reflecting telescope. In 1675 he attended his first meeting of the Royal Society, where he met Robert Boyle (1627–1691), a British natural philosopher and theological writer, a pre‐eminent figure of 17th century intellectual culture, whose scientific work covered many areas including hydrostatics, physics, medicine, earth sciences, natural history and alchemy [3].…”

“…Because he believed that chromatic aberration could never be eliminated from lenses, Newton developed the reflecting telescope, constructing the first. The heterogeneity of light has been the foundation of physical optics since his time [3].…”

“…In his later years he devoted much time to interpreting the prophecies of Daniel and St. John, and to a closely related study of ancient chronology. Both works were published after his death [3].…”

“…In 1689 Newton sat for a portrait by Sir Godfrey Kneller (1646/1649? -1723), the leading portraitist in England during the late 17th and early 18th centuries [3]. Isaac Newton and the noted philosopher John Locke (1632-1704) engaged in a prolific correspondence dealing with 'corruptions of the scriptures' .…”

The personality of Isaac Newton

“…In his letter of acceptance, he committed himself to 'communicating what my poore & solitary endeavours can effect towards ye promoting your Philosophicall designes', and kept his promise on 6 February by sending the Society his paper on the theory of colours, which appeared, without any demur on his part, in the Philosophical Transactions for 19 February.18 5. The years at Cambridge Isaac entered the University at an age a year or two older than was usual at that time and, as when at school, he clearly made few friends there.…”