Nicolas Fatio de Duillier

Since almost the beginning of my interest in Newton 4 years ago, I've become increasingly interested in another figure prominent in Newton's life, one Nicolas Fatio de Duillier. He appears in almost every Newton biography I could get my hands on, and his role in Newton's life is debatably important, not just in his role in the Newton vs. Leibniz conflict, but also how he fits in with Newton's breakdown of 1693. Although some biographers feel his position as Newton's no. 2 between the years 1689 - 1693 are not important, and try desperately to fit him in their accounts as little as possible. But I've always thought him to be a fascinating character in his own right, his background, rise to post in the Royal Society, and his downfall, credit him to be deserving of his own biography. 

However, it should be noted that he, like so many others, would always be linked with Newton, and therefore I feel I could never separate the two respectively. For me, the milestones in each of Newton and Fatio's lives are intertwined, and the parallels I've noticed between them are the reasons they worked so well together, as well as clashed near the end. Discussing their personalities, particularly Newton's is a post in its own, but Fatio's has also been lead to be peeled apart by biographers. The fact that Newton and Fatio came together and held strongly together so quickly says a lot about their natures, as well as the ever-examined case of their sexual (or non-sexual) identities. What Fatio does with many Newton biographers who attempt to come to a conclusion about Newton, is throw a spanner in the works. Newton's personality is almost unrecongnisable because of Fatio, and that says an awful lot, not just about the effect Fatio had over Newton, but also about Fatio himself.

Before I continue, I want to just point out that out of the few TV documentaries revolving around Newton that manage to include Fatio, they all seem to fail in one department; the pronunciation of his name. 

When I first read the name 'Fatio', in my head I heard 'FAT-ee-oh'. It always sounded strange somehow, as though his name was Anglicised for the purposes of easier pronunciation. But then after a while of saying it like that, I went and investigated how to pronounce it. I couldn't find anything about Fatio himself, but I did find an interview with the daughter of the late Maurice Fatio, who was a Swiss born American architect responsible for the Mediterranean-style house designs in Palm Beach. He was born in Geneva, not far from where our Fatio was born, and it was whilst reading the interview with his daughter Alexandria, that she said the way to pronounce 'Fatio' was 'FAH-see-oh', as in 'fascinating', not 'patio'. I felt a sense of revelation, and have continued to refer to him vocally as 'FAH-see-oh' since. There are also various spellings of his name, the far-fetched one being Nicholas Faccio du Duillier.

Also the name 'Duillier' gets pronounced 'Dwill-ee-ay', which is almost right, but in Swiss/French tongue, the pronunciation is more of a 'Dwee-yay' sound. His forename too though looks like it is pronounced as the Anglicised 'Nicholas' (Nick-o-lass), but is actually pronounced like the feminine variation 'Nicola' (Think Nicola Tesla!).

So to surmise, the correct pronunciation of his name is: Nicola Fasio de Dwee-yay...

Anyway, now that has been settled, I'll continue.

Background

Nicolas Fatio de Duillier was born in Basel on the 26th February 1664 to a wealthy Swiss family, the seventh of fourteen children to Jean-Baptiste and Catherine Fatio. In 1672, the family moved to Duillier, hence the name, and at age 18, Fatio went to Paris to work at the observatory under one Giovanni Domenico Cassini after having written to him suggesting a new method to determine the sun's distance from the earth, as well as an explanation for Saturn's ring. This was followed up by Cassini's theory of the zodiacal light, and Fatio, continuing his observations, repeated them at Geneva, leading them to be developed and published in 1686.

Rise to the Royal Society

William of Orange (BBC)

In 1683, an acquaintance of Fatio's, Piedmontese Count Fenil confided in him a plot to kidnap the Prince of Orange, with a letter approved by the King of France to proceed in the action. Fatio revealed everything to his friend Gilbert Burnet, who went with Fatio to Holland in 1686 to tell the Prince. As reward, Fatio was given a mathematical professorship and a private pension. He visited England in 1687, and concluded that he was happy there, stating that he would not return to the Hague until Prince Orange was King of England. Whilst in England, he gained a position in the Royal Society, and two years later in 1689, he first met Newton.

Newton

Although Fatio will always be linked with Newton, Newton will, to me, always be linked with Fatio. Their relationship has sparked many debates about the nature of their intimacy, and while a lot of people will say it doesn't matter, in a way it does. What we learn is not necessary the nature of Newton's feelings, but Fatio's. From letters he writes to his brother Jean Christophe that 'the reason he should not marry may last as long as [his] lifetime', which could mean one of three things, a) that he harbours homosexual feelings, b) that he harbours a life of celebacy, or c) that he harbours no feelings whatsoever for anyone. These notions are in league with Newton's own unconfirmed nature, and whether or not Newton had any feelings, whether they be sexual or not for anyone. Yet Newton has had relationships in the past which could suggest that he is not harnessing a heart of stone.

During the years he spent lodging with the Clarke family in Grantham, Newton became friends with Mr Clarke's step-daughter Catherine Storer. She is reputed to have been Newton's first love, although there is little to suggest that Newton had any heart-felt feelings for her, she perhaps thought that she and Newton would one day marry. However, the likely case is that the romance was unrequited, and that Newton spent more time thinking about inventing than anything or anyone else.

From there, Newton went to Cambridge University where he shared rooms with one John Wickens after both Newton and Wickens were unhappy with their current roommates. For 20 years, Newton and Wickens spent time working on Maths and alchemy, eventually ending in 1683. After the relationship, Newton only sent one letter to Wickens, along with Bibles that Wickens had requested from Newton. The letter was cold and short, and it suggests that Newton was in despair that they had parted after such as long time. Wickens in turn perhaps wanted the friendship to continue, but it never did, and the only time Wickens spoke of Newton after was to his son who wanted to know more about the great Isaac Newton whom his father had once known. Wickens gave little away, and the relationship continues to cause speculation.

Isaac Newton

In turn, Newton's relationship with Fatio causes a stir, as the ambiguity of the letters passed between them suggests secrets they hide from prying eyes. From the start, many of the letters talk of mathematical studies, and even alchemy, but in some of the sentences in these letters, they talk of meeting together, bringing each others letters and books, making plans to share rooms together, words of affection and kindness. Something that Newton was not prone to doing often, except perhaps towards his mother or to his niece later on, which explains how biographers interpret the relationship as familial rather than passionate.

It has often be wavered that the relationship between Newton and Fatio was like father-son, or master-student, with Newton taking on the 'parent' role while Fatio became the 'child'. Others suggest a 'messiah'-'disciple' relationship, as Fatio looked upon Newton as a god.

Yet some of the words imply otherwise. In one of the first letters Fation writes to Newton, he ends it with 'I am, with all my heart'. Prior to this, he talks to, near teases Newton about coming over to read a book written in French, and says 'It being writ in French, you may perhaps choose rather to read it hear with me'. He talks about how glad he is that Newton is coming to see him, and writes confidently about how he has finalised his theory of Gravity. Would others have dared to tease the ill-tempered Newton about his lesser linguistic skills as Fatio had? From historical accounts, Newton was prone to violent attacks, even towards those who were supposed to be his nearest and dearest, but Fatio was able to provoke Newton which no one else could even dream to do. Fatio had wrapped Newton around his little finger, and Newton was none the wiser.

Fatio tested the relationship by constantly spending time away, and for all their time together, a lot of it was spent apart. Fatio went to the continent frequently, but the letters they exchanged were littered with words of endearment, sentences to the effect of 'I'm thinking of you' were evident, and Newton yearned after Fatio, and after a while, it seemed Fatio was beginning to yearn after Newton. They found their differences balanced each other, Newton's fiery temper was cooled by Fatio's cool character, and in return, Fatio became impassioned, and  Newton was controlled.

In the height of their relationship, Newton goes to meet Fatio off the boat after the latter had been to the continent. To Newton's friends, they had no idea he was in London, or that he had gone to meet Fatio. It is implied that they went from there and lodged together for a week. What happened in this meeting is unknown, but it plays upon the secret nature of their relationship.

It is here I will bring about the fact that the times at which Newton and Fatio lived in were bound by religion and the law, and therefore any homosexual relationship was punishable by death. If Newton and Fatio had fallen in love, they knew perfectly well that any action they took to be physical which was discovered meant a risk to their lives. Newton held his reputation in high regard, even if when he was with Fatio he was given to temptation regarding new ideology, so he trod carefully, even pulling out at the last minute of publishing an article about Arianism (a heretical Christian doctrine), which his friend John Locke was going to publish. His feelings, whatever they may have been, certainly drew attention from his contemporaries regarding why he hadn't told anyone he was in London.

It has been suggested that the pair spent that week discussing alchemy, which would make perfect sense, as alchemy was also heresy and punishable by death, but if that was the case, wouldn't he have involved his friend Robert Boyle, a fellow alchemist, to entrust about the nature of this secrecy? Why only involve Fatio? Why not tell anyone that he was in London? Newton was practicing alchemy in his rooms at Cambridge University, so if it was about that,

St. James' Park, London

I say this, yet during the reign of Charles II, St James' park had been a hot-spot for all kinds of 'debauchery', including 'buggery', so it was perhaps not unusual to hear of two men being caught in the act during this time. Nevertheless, it was still a crime. As well as this, Newton was a devout Christian, so if he was falling for another man, he would have likely been fearful for his soul as well as his life.

Cracks in the Relationship

What I find interesting about their relationship is the direction in which they went. What I mean by this is that, with Newton, his life began as a son of a Yeo-farmer, his mother, whilst not unloving, had to have a hard-exterior, and in effect show this hardness to Newton. And while he wasn't poor, he was not bestowed with an awful lot of wealth, and the chance of his name meaning anything to anyone after his death was slim. For Fatio, he was born into wealth, his mother molly-coddled him, he had a high education, he traveled far and wide, his life, as it was perceived at the time, could only get better.

Yet this is not what happened. Newton's life got better with time, whilst Fatio's got worse. It mainly has to do with the decisions they made, but it also has to do with their personalities. Newton was a single focused worker. When he started something, he wasn't content until it was finished to the best of his capabilities. For Fatio, if something didn't work out, he left it, and moved on to the next fad, whether it be teaching or watch making. Newton was a natural philosopher, an alchemist, and a devout Arian. Fatio was a polymath. Their conflicting personalities may have lead to their break-up, as one went up, the other went down, and there was little either could do to stop this.

For Fatio, his life had been full of opportunities, but that isn't to say he was careless, as many biographers who talk about Fatio seem to come to the conclusion that he was a reckless follower, who got mixed into the wrong crowds, and ended up losing all of his influence and respect. However, this 'reckless' youth was what attracted Newton in the first place, and it was what kept them together for nearly 4 years. But as it was, because Fatio had a tendency to be indiscreet, for one mentioning alchemy in letters, getting involved with the Camisards, and leading Newton on.

Remember, Newton's personality was vulnerable, so any pressure placed on Newton would not have ended well. His relationship with Fatio tested this vulnerability to the limit, and it is said that after the break-down following their break-up, Newton's mind was never the same again.

But how did it come to the break-up in the first place?

For a start, taking into consideration their conflicting personalities, Newton first suggested to Fatio that they should share rooms. Now considering how this opposes Newton's regular nature, Fatio had made an imediate impression. From there, Fatio lead Newton on, not in a cruel or heartless way, for Fatio was very taken with Newton, and vice versa, but he and Newton both wanted something they couldn't perhaps have. As I mentioned, the times they lived in meant that same-sex relationship were illegal, so if there was anything going on between them, it was likely never consummated. Therefore, the tension and strain of the relationship would have put pressure, not just on Newton, but on Fatio too.

During the last years they were together, Fatio increasingly took time away from Newton. Now this perhaps has nothing to do with them not being able to express themselves in a promiscuous manner, but more likely it was to do with Fatio having to take time away to visit family in Switzerland. His mother had died, family affairs needed to be taken care of, and issues with money needed to be settled. Newton would have been understanding of this, as he himself had to go through a similar experience, albeit he would have taken charge of everything whereas Fatio would have been on the fringes of things (his elder siblings would likely have taken the reigns). So when Fatio does come back, Newton is keen to try and keep Fatio nearby, mainly with them sharing rooms.

Now Newton, as I said, was not one for persisting in trying to make a relationship work. As even his 20 year relationship with John Wickens ended swiftly. But Newton was keen to have Fatio near him. Yet Fatio, who by now was probably not in the mood to keep going in a relationship with little to no solid physical affection, so when Newton suggests for the last time that they share rooms, Fatio teases him in implying that Newton is not as open about what he wants from him. This could mean that, while Newton is trying, Fatio knows that there is no point in continuing the relationship, and so does he best to ease his way out of it.

Not only that, but Fatio's 'fads' get out of hand, and his involvement with the Camisards leads Newton to question his association with the Huguenots. Fatio may have been trying to find his own way in the world of religion as Newton had, but instead of following Newton's path, he takes the other route and goes all out, expressing his activism to anyone who cares, including Newton and his friends, who succeed in persuading Newton not to go and listen to a hearing of the Camisards. This extreme group would have lead Newton to go down the same route as Fatio eventually did. Had it not been for Newton's friends, Newton's reputation would have fallen, and his fame would have suffered, not just during his lifetime, but for years to come.

Alchemy was practiced by notables like Isaac Newton,
and even King Charles II.

It is also suggested that Newton and Fatio's relationship was based on a basis that Fatio was always going to be second best to Newton. If Newton had plans to make Fatio great, perhaps even as great as Newton, then he didn't do it well. Again, this could be because of their personalities, but I believe it's due to the time in which they meet. Fatio first met Newton when Newton had first achieved fame with the Principia. Fatio may have believed that that was where Newton was going to stop, and let Fatio take over in drawing up a second edition where Fatio had 'corrected' it. However, again Fatio's personality took over, and he pushed his 'No. 1' position next to Newton too far, leading him to be known as 'Newton's Ape'. It is also possible that Newton had spent more time with Fatio on alchemy than Maths, and therefore Fatio had no chance of ever being as successful as Newton.


This is where their parallels come in, as Newton grew in fame, Fatio's rise was short-lived, and he took a wrong turn to his downfall. Fatio was perhaps always over-shadowed by Newton's greatness to ever be noticed, even if he had been allowed to publish his edition of the Principia. Not only that, but as Newton had drawn Fatio into a world of alchemy, Fatio was perhaps naive about how serious it would be to expose even the slightest hint of alchemy practice, and he began leaving papers around which would not only expose Fatio, but Newton about the pair's involvement in the practice. As I said, Newton was careful not to let slip of any secrets he had which would ruin his now famous reputation, and seeing as Fatio was endangering this, he might have thought it best to part from the younger man.

Not only this, but Fatio struck Newton with a blow when he declared that he was terminally ill. He complained of an ulcer in his stomach, and wrote to Newton about how comforting it was to know Newton had been in his life. To Newton, he must have read it thinking 'this is the last time he'll write to me'. In desperation, Newton begged Fatio to try and recover by living with him in Cambridge. But in the next reply from Fatio, it seemed that the cause for panic was short-lived, as he made a swift recovery and wrote to Newton about what had been wrong with him.

To many biographers, Fatio seemed to display a sense of hypochondria, something that perhaps wasn't alien to Newton, but it was the way in which Fatio seemed to describe in detail about his illness that skeptics decipher as trying to attract sympathy, although it is unclear as to why. Perhaps it was due to Fatio's decline in popularity, after being given the nickname of 'Newton's Ape', or maybe he was genuinely ill, and the long description of ailments was his way of dealing with it. Whatever it was, Newton was filled with concern, and tried unsuccessfully to make Fatio live with him. Perhaps Fatio was doing Newton a favour by failing to decide whether to live with him or not, as mentioned in the letter to his brother, he almost hints of his supposed sexuality, and in this, he could have realised that he was putting Newton at risk. Maybe Fatio cared for Newton, and tried to ease himself out before anything got Newton into trouble. What Fatio didn't realise was that Newton was vulnerable mentally as well, and that this split would cause Newton serious psychological harm.

So, as well, as alchemy secrets being let slip, Fatio's increased association with the radical Camisards, his constant trips away, and failing to reach anywhere near as high a position as Newton, Fatio must have felt at a loss when he, after spending nearly 4 years with Newton, hadn't gained as much as he may have wanted. His initial aim was probably to use Newton as a stepping stone towards his own fame, yet Newton, in his ignorance, had used Fatio to help him explore alchemy, heretical religions, and even aid him in the newer editions of his Principia (as Fatio had pointed out several mistakes, yet had no credit for them).

The split came around the time when Newton, who was in London, went to visit him in May, and then again in June 1693. No record of what went on during those meetings survives, but it marked the end of the most emotionally charged relationship of his life. The letters between them stopped their mutual praising, and the only times they corresponded after that were rare, and only to note minor things that were happening at the time. It wasn't to say that they never spoke to each other again, but the passion that was felt during those 4 years ended, and Fatio never lived with Newton, his never oversaw the 2nd edition of the Principia, and his name was all-but lost below Newton's.

In 1693, Newton had a massive nervous break-down, and the cause of this is debated. Fatio certainly had something to do with it, as the last letter, and their last intimate meeting was during this year. Fatio left Newton's company, and Newton took time to recover, although never fully doing so. He instead dropped the world of science and focused on his persuits of the Royal Mint, securing a place as Warden. Fatio went on a pilgrimage, and eventually came back to take up a place in the Camisards.

Religion

From Newton's perspective, his 'heretical' religious views are only viewed as such because they dismiss the Holy Trinity, where God, Jesus, and the Holy Spirit are one and the same. Newton believed that this was not right, and that the 'true' Christianity, Arianism, was overthrown for the Anglican doctrine. Fatio went one step further in joining an even more radical religion called the 'Camisards', also known as the French Prophets, who were a Protestant group of people who preached that they could raise the dead and speak in tongues. Fatio had managed to engage himself as their secretary, and his contemporaries couldn't understand how someone with such a brilliant mind would join such a radical (if not ridiculous) group. I wondered if the same people who criticised Fatio would do the same if they had known of Newton's own 'heresy'. It seemed that this particular religion wasn't a good one, and it cost Fatio dearly.

The Camisards were outcasts from France and came to
England spreading their beliefs.

But why the Camisards? Why not follow the same religion as Newton, seeing as Newton was Fatio's idol, and due to his ritual of copying Newton in his 'extra-curricular' activities which gained him the nickname of 'Newton's Ape' would have made sense if he had chosen one similar if not the same.

It was at this stage that Fatio seemed to be moving away from Newton, perhaps trying to get out of the relationship without meaning to hurt Newton in the process. It could also be a move to make sure that any negativity between the pair fell squarely on Fatio's shoulders, so that if anyone had found out about Newton's Arianism, Fatio would be viewed as the worse 'sinner'. Or it could simply be that he was drawn to their views, even if they were rather over the top. For a sensible man like Fatio, it seemed that the other members of his and Newton's circle of contacts thought it was unlike Fatio to join such a group.

The Camisards weren't just outcast from their original country of France, they were then outcast from England, and anyone found to be preaching in public their radical views were swiftly sent down.

Fatio, being their secretary, joined them in the pillory's.

Downfall

Fatio's involvement with the Camisard's was one of the events which lead to Fatio's eventual downfall, and also his slide out from the Royal Society. While he never officially left, he merely stayed on the fringes of scientific circles and spent his time elsewhere doing other activities.

What I found was that Fatio's embroilment with Newton from the off was the start of his downfall. Siding yourself with Newton. trying to be the younger, new wave of Newton ideals, trying to improve Newton's work, even trying to become Newton himself, was only ever going to lead to heartbreak. No one that came across Newton was ever able to outshine him, which is where Fatio had tried and failed to do. He believed he could take Newton's ideas and develop them into something greater, but instead he descended.

It was perhaps the relationship, in which both Newton and Fatio were taken with each other, saw that it needed to stop. Perhaps Fatio saw this revelation first and decided it was in both men's best interest that he try and leave as soon as possible. Perhaps because Newton's religion or sexuality prevented Fatio from making Newton succumb to his needs. Perhaps in the end, Newton had wanted Fatio to stay with him, despite the social standing and the law, but that Fatio wasn't willing to risk both their necks for the sake of their happiness.

Whatever the reason, Fatio eased himself out of the relationship, first by staying away for a number short trips to the continent, to London, and to his family. Then he developed an illness which may or may not have been entirely genuine, but it lead to Newton trying to bring Fatio closer. And finally, he became entangled in the world of the Camisards. This move was largely taken up after the split, and when Fatio found himself in the pillory's, Newton did nothing to help him. That wasn't to say other's didn't try, but perhaps Newton had been hurt so badly by Fatio leaving that he thought he deserved a time in the stocks. Fatio had some allies as he was saved from the violence of an angry mob by the Duke of Ormonde's influence.

Fatio left England and went over to the continent to spread the Camisard influence before he came back and settled. He must have lost interest in its cause as it seemed he didn't return back into any more trouble.

Yet although Fatio was charged and sentenced, he bounced back. He never completely stayed away from Newton, nor from the Royal Society, but his three day sentence stained his reputation for the rest of his life, and he was never as close to Newton as he had been for those four years.

Fatio did go on to develop a method of drilling rubies which made watches keep time more accurately. He patented the idea and he even gave two of these new watches to Newton. It was this little gesture which made me think that there were still kind feelings between them.

The Calculus War

The history of the Calculus War started before Fatio entered the Newton scene. As far as anyone who has delved into its roots, Newton had sent a transcript to his former tutor, Isaac Barrow, and then made it to the continent, which passed hands across the scientific minds in the countries they resided. One of these hands was Gottfried Leibniz, who had read Newton's manuscripts on tangents, which included Newton's early methods of Calculus, a differing method to Leibniz's later version (one that is still used to this day). The fact that Leibniz had perhaps briefly seen these manuscripts suggests an air of plagarism.

However, it is disputed that Leibniz did not take in any of the methods used by Newton, and had in fact come up with a method all on his own. Yet because of Newton's reluctant nature to publish anything immediately, he had inadvertently allowed Leibniz to take the lead in publication of his work. Newton's Principia and later editions included his own version of Calculus, but these were published much later after Leibniz had published his version. Yet neither party were bothered by this, as Leibniz had his fame, and Newton had his. They respected each other's work, and Leibniz even praised Newton's intellect.

It wasn't until a certain Nicolas Fatio de Duillier stepped back onto the Newton scene after a turbulent few years that the Calculus War really began.

Fatio had perhaps tried to win back Newton's favour in this move, and in 1699 he kicked off the War by accusing Leibniz of plagarising Newton's form of Calculus. For a while nothing happened, not blows were struck, and neither Newton nor Leibniz really felt inclined to make a move.

Yet in 1704, an anonymous hand accused Newton of plagarising Leibniz of Calculus, suggesting that Newton had borrowed the idea of fluxional calculus from Leibniz...despite Newton having written his work during the plague years at Woolsthorpe - before he had even entered the Royal Society and had his work circulated.

Gottfried Leibniz

It has been suggested that because Leibniz had not thought to consult Fatio on a problem seeking a solution, but instead had chosen Newton, Fatio had retorted by attesting that Leibniz was the 'second inventor' of Calculus. He encouraged the Royal Society to back Newton in the dispute.

What is interesting is that Leibniz appealed to Newton to acknowledge him as an independent inventor, however, Newton jumped on board with the dispute and fought Leibniz in claiming sole invention of Calculus, one war that was not won by Leibniz.

In stirring up the conflict, Fatio had established Newton as the inventor of Calculus at the time, but in later centuries, both sides of the North Sea have come to the conclusion that Newton and Leibniz invented Calculus independently. It could be perhaps that Leibniz had seen Newton's manuscripts and gained the idea for his own version, but never once did he steal directly from Newton's own work.

I personally believe that, while they did invent independently, Newton was first in the idea of modern Calculus (I say modern because I'm not going deep into the history of Calculus...that would take me back to ancient Greece and India), but that Leibniz invented a simpler method later on, which modern calculators and mathematicians use to this day.

Because of Newton's fame, he had grown a vast circle of allies to back his fight, and in the end, he won. Leibniz died in 1716 when the dispute was still on-going. Because of his death, he could no longer defend himself, and the case was in favour of Newton.

Not only had Fatio's involvement in the Calculus War enabled Newton to take the title of 'first inventor', he had also inadvertently ruined Leibniz's reputation. But what did Fatio gain from all of this? He certainly didn't get back in favour with Newton, although it is implied that they never went completely cold on each other, and he didn't get back in full favour with the Royal Society. It seems that his involvement merely lead to him becoming a prime member of the Newton-Leibniz dispute, and if it wasn't for him, scholars wouldn't still be talking about it to this day. They would just have accepted Leibniz as the first inventor of Calculus instead of Newton, so in a way, Fatio was Newton's silent hero in building up Newton's list of inventions, and ultimately his genius. Yet if Fatio hadn't done this, someone much later would have noted the history, and therefore taken Fatio's spotlight in pointing out the facts.

Inventions

What I love about Fatio is that despite his mistakes, he actual came up with some pretty ingenious inventions. One of which I have mentioned was the procuring of jewels (mainly rubies to begin with) in watches, which enabled them to run smoother and with a more accurate measure of time. Talk about a Swiss watch-maker.

Newton's Tomb at Westminster Abbey

He also originated the 'push' or 'shadow' theory of gravitation, known today as 'Le Sages' theory of gravitation. Unlike Newton, Le Sage recognised Fatio as the original creator of the theory, but developed the idea into his own.

Not only that, but he also introduced improvements to telescope glasses, realised that a ship's motion through water could help to grind corn, raise anchors and hoist rigging, and measured the height of Geneva's mountains.

He also planned a second edition to Newton's Principia, but his 'improvements' weren't acknowledged in later additions.

And finally, when Isaac Newton died at the age of 84 in 1727, Fatio helped John Conduitt, Newton's half-niece's husband, to write the inscription on Newton's tomb.

Summary

The thing that fascinates me about Fatio is how little he is acknowledge in the scientific spectrum. His association with Newton alone is prize to be noted, yet only those who know about Newton through reading biographies of him, know anything about Fatio. For me, Fatio is a tragic hero who through his faults has become a favourite in my heart, and while I will always love Newton, Fatio is equal to him on so many levels, not just in their relationship, or even in their personalities, but in how unique and individual they are, Both are enigmas which finds more favour with Newton (rightly), but Fatio seriously needs his own biography.

Further Reading:
http://en.wikipedia.org/wiki/Nicolas_Fatio_de_Duillier
Isaac Newton, The Last Sorceror - Michael White
Newton - Peter Ackroyd
Newton's Notebook - Joel Levy
Newton's Gift - David Berlinski
A Portrait of Isaac Newton - Frank E. Manuel

Picture Credits
https://i2.wp.com/upload.wikimedia.org/wikipedia/commons/3/31/Fatio.jpg
http://static.bbc.co.uk/history/img/ic/640/images/resources/people/william_iii_of_orange.jpg
http://www.calculushumor.com/uploads/1/2/0/2/12023481/249770465_orig.jpg
http://www.britainisgreat.com/wp-content/uploads/2014/11/31_06_8-St-James-s-Park-London_web.jpg
http://static1.squarespace.com/static/52b4e29fe4b08c16746a9eac/t/54696225e4b0ddf2508d90da/1416192550036/
https://ravelledesoterica.files.wordpress.com/2014/03/dragoon-cartoon.jpg
http://www.earlymoderntexts.com/images/leibniz.jpg
http://www.westminster-abbey.org/__data/assets/thumbnail/0003/85953/Newton-monument.jpg