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Isaac Newton: the story on HearLore | HearLore
Isaac Newton
Isaac Newton was born so small that his mother, Hannah Ayscough, claimed he could have fit inside a quart mug. This premature birth on Christmas Day 1642 marked the beginning of a life that would redefine the physical universe, yet his early years were defined by abandonment and resentment. His father had died three months before his birth, and when Newton was three, his mother remarried and left him in the care of his maternal grandmother. The boy who would later calculate the motion of planets and the flow of fluids harbored a deep-seated hatred for his stepfather and mother, a feeling so intense that he recorded a list of sins at age 19 which included a threat to burn them and the house over them. This volatile domestic life drove him away from the farm his mother tried to force him to work, and into the classroom of The King's School in Grantham. There, a desire for revenge against a schoolyard bully transformed him from a reluctant student into the top-ranked scholar, a transformation that began his lifelong habit of using intellectual dominance to assert control over his environment.
The Golden Years Of Woolsthorpe
In the two years following the Great Plague of 1665, while Cambridge University remained closed, Newton retreated to his childhood home at Woolsthorpe Manor and produced work that stands alone in the history of science. During this period, often called his annus mirabilis or year of wonders, he developed the foundations of calculus, formulated the initial theories of optics, and began to conceive the law of universal gravitation. These were not mere academic exercises but radical breakthroughs that unified the motion of objects on Earth with the movement of celestial bodies. He discovered the generalized binomial theorem and began to develop a mathematical theory that would later become calculus, a systematic approach to differentiation and integration that he applied to dynamic analysis. The physicist Louis Trenchard More noted that there are no other examples of achievement in the history of science to compare with that of Newton during those two golden years. He was exceptionally organized, dog-earing pages he deemed important and creating indexes that looked like present-day alphabetical systems. This private period of genius laid the groundwork for the Principia, yet it remained unpublished for nearly two decades, hidden away while he navigated the politics of the Royal Society and the expectations of the Church.
The War Over The Infinite
The development of calculus, which Newton called the method of fluxions, began in 1664 and was fully formed by the 20th of May 1665, yet it sparked a bitter controversy that would poison the relationship between Newton and the German mathematician Gottfried Wilhelm Leibniz for the rest of their lives. Newton had developed the theory years before Leibniz, but he was reluctant to publish his work due to a fear of controversy and criticism. The dispute escalated when the Swiss mathematician Nicolas Fatio de Duillier, Newton's close friend, began writing a new version of the Principia and corresponded with Leibniz. In 1693, the relationship between Fatio and Newton deteriorated, and the book was never completed. Starting in 1699, Fatio accused Leibniz of plagiarism, and in 1708, the mathematician John Keill accused Leibniz of plagiarism in the Royal Society journal. The dispute broke out in full force in 1711 when the Royal Society proclaimed Newton the true discoverer and labeled Leibniz a fraud, a study in which Newton himself wrote the concluding remarks on Leibniz. Despite the convenience of Leibniz's notation, which was adopted by continental European mathematicians and later by British mathematicians after 1820, Newton's geometric methods were often more concise and elegant, revealing deeper principles than the formal methods of calculus that would become standard. The historian A. Rupert Hall noted that Newton had reached roughly the point in the development of the calculus that Leibniz and others had by joint efforts reached in print by the early 1700s, well before 1690.
Common questions
When was Isaac Newton born and what were the circumstances of his birth?
Isaac Newton was born on Christmas Day 1642 as a premature infant so small that his mother claimed he could have fit inside a quart mug. His father had died three months before his birth and his mother remarried when he was three years old.
What major scientific discoveries did Isaac Newton make during the Great Plague of 1665?
Isaac Newton developed the foundations of calculus and formulated initial theories of optics while retreating to Woolsthorpe Manor during the Great Plague of 1665. He conceived the law of universal gravitation and discovered the generalized binomial theorem during this period known as his annus mirabilis.
How did Isaac Newton resolve the controversy over the invention of calculus?
Isaac Newton developed the method of fluxions by the 20th of May 1665 but did not publish it until after a bitter dispute with Gottfried Wilhelm Leibniz. The Royal Society proclaimed Newton the true discoverer in 1711 and labeled Leibniz a fraud in a study where Newton wrote the concluding remarks.
What telescope did Isaac Newton invent and how did it improve upon existing designs?
Isaac Newton constructed the first known functional reflecting telescope using reflective mirrors instead of lenses to avoid chromatic aberration. This instrument was about eight inches long and provided a clearer and larger image that allowed him to see the four Galilean moons of Jupiter and the crescent phase of Venus.
When was the Philosophiæ Naturalis Principia Mathematica published and what did it contain?
The Philosophiæ Naturalis Principia Mathematica was published on the 5th of July 1687 with encouragement and financial help from Edmond Halley. This work stated the three universal laws of motion and formulated the law of universal gravitation to unify the motion of objects on Earth with celestial bodies.
What role did Isaac Newton hold at the Royal Mint and what achievements did he make there?
Isaac Newton served as warden and later Master of the Royal Mint from 1696 until his death in 1727. He prosecuted 28 coiners including William Chaloner and improved minting technology to reduce the standard deviation of the weight of guineas from 1.3 grams to 0.75 grams.
In 1666, Newton observed that the spectrum of colors exiting a prism was oblong, even when the light ray entering the prism was circular, leading him to conclude that color is a property intrinsic to light. This observation challenged the prevailing belief that the prism itself created color, and it formed the basis of his theory of color, which stated that colored light does not change its properties by separating out a colored beam and shining it on various objects. He demonstrated that the multicolored image produced by a prism, which he named a spectrum, could be recomposed into white light by a lens and a second prism. From this work, he concluded that the lens of any refracting telescope would suffer from the dispersion of light into colors, known as chromatic aberration. As a proof of the concept, he constructed a telescope using reflective mirrors instead of lenses, creating the first known functional reflecting telescope, today known as a Newtonian telescope. This instrument was about eight inches long and gave a clearer and larger image, allowing him to see the four Galilean moons of Jupiter and the crescent phase of Venus. When Robert Hooke criticized some of Newton's ideas, Newton was so offended that he withdrew from public debate, though the two had brief exchanges in 1679 and 1680. Newton argued that light is composed of particles or corpuscles, yet he also noted that light had both particle-like and wave-like properties, anticipating the modern understanding of wave-particle duality. The physicist David Finkelstein called Newton the first quantum physicist as a result of these insights.
The Unseen Architect Of The Cosmos
Newton had been developing his theory of gravitation as far back as 1665, but it was the appearance of a comet in the winter of 1680 and 1681 that reawakened his interest in celestial mechanics. He shared his results with Edmond Halley and the Royal Society in a tract written on about nine sheets, which was copied into the Royal Society's Register Book in December 1684. This tract contained the nucleus that Newton developed and expanded to form the Philosophiæ Naturalis Principia Mathematica, published on the 5th of July 1687 with encouragement and financial help from Halley. In this work, Newton stated the three universal laws of motion and formulated the law of universal gravitation, achieving the first great unification in physics. He solved the two-body problem and introduced the three-body problem, demonstrating that the motion of objects on Earth and celestial bodies could be accounted for by the same principles. Newton used the Latin word gravitas for the effect that would become known as gravity, and he provided the first calculation of the age of Earth by experiment. The complexity of applying his theory of gravity to the motion of the moon was so great that it affected his health, causing him to lose his appetite and sleep, and he told the astronomer John Machin that his head never ached but when he was studying the subject. He identified two principal cases of attraction, the inverse-square law and a central force proportional to distance, showing that both yield stable conic-section orbits.
The Warden Of The Mint
In 1696, Newton moved to London to take up the post of warden of the Royal Mint, a position he had obtained through the patronage of Charles Montagu, 1st Earl of Halifax. He took charge of England's great recoining and clashed with Robert Lucas, 3rd Baron Lucas of Shenfield, then Governor of the Tower. Newton became perhaps the best-known Master of the Mint upon the death of Thomas Neale in 1699, a position he held for the last 30 years of his life. He estimated that 20 percent of the coins taken in during the Great Recoinage of 1696 were counterfeit, and despite the difficulty of convicting even the most flagrant criminals, Newton proved equal to the task. Disguised as a habitué of bars and taverns, he gathered evidence himself and conducted more than 100 cross-examinations of witnesses, informers, and suspects between June 1698 and Christmas 1699. He successfully prosecuted 28 coiners, including the serial counterfeiter William Chaloner, who was hanged. Beyond prosecuting counterfeiters, he improved minting technology and reduced the standard deviation of the weight of guineas from 1.3 grams to 0.75 grams. He ultimately saved the Treasury a then £41,510, roughly £3 million in 2012, with his improvements lasting until the 1770s. He greatly increased the productivity of the Mint, raising the weekly output of coin from 15,000 pounds to 100,000 pounds, and held a surprisingly modern view on economics, believing that paper credit was a practical and wise solution to the limitations of a currency based solely on metal.
The Heretic In The Shadows
Although born into an Anglican family, by his thirties Newton had developed unorthodox beliefs that led historian Stephen Snobelen to label him a heretic. He privately rejected the doctrine of the Trinity, worshipping Jesus Christ as God in his eyes was idolatry, an act he believed to be the fundamental sin. Newton recognized Christ as a divine mediator between God and man, who was subordinate to the Father who created him, and he was especially interested in prophecy, but for him, the great apostasy was trinitarianism. He tried unsuccessfully to obtain one of the two fellowships that exempted the holder from the ordination requirement, and at the last moment in 1675, he received a government dispensation that excused him and all future holders of the Lucasian chair. Over half of what Newton wrote concerned theology and alchemy, and most has never been printed. His writings show extensive knowledge of early Church texts and reveal that he sided with Arius, who rejected the conventional view of the Trinity. Newton was a devout but unorthodox Christian who refused to take holy orders in the Church of England, unlike most members of the Cambridge faculty of the day. He hid his faith so well that scholars are still unraveling his personal beliefs, and he warned against using his laws of motion and universal gravitation to view the Universe as a mere machine, as if akin to a great clock.