James gregory 1638 biography sampler video

Before he left Padua, Gregory published Vera Circuli et Hyperbolae Quadratura in which he approximated the areas of the circle and hyperbola with convergent series:. Subscription or UK public library membership required.

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There he met Collins and a lifelong friendship began. Retrieved 3 October It was indeed unfortunate that these two great mathematicians should enter into a dispute, although having said that it is worth noting that disputes were common at this time, particularly regarding priority. Perhaps it is worth saying a little about how Gregory's work relates to that of Newton.

Collins, in return for some received from him of Newton's , in which he followed the elegant example of this author, in delivering his series in simple terms, independent of each other. Tools Tools. See also [ edit ]. The reader may not understand Gregory's reference to "the elliptic inequality" which in fact refers to Kepler 's discoveries.

However, Hooke learnt of Reive's failed attempt at making the parabolic mirror and this would lead to a successful construction of the first Gregorian telescope around ten years later. Biography in Encyclopaedia Britannica. James Gregory. At Padua he lived in the house of his countryman James Caddenhead , the professor of philosophy, and he was taught by Stefano Angeli.

Gregory's health was poor in his youth. Despite this there is brilliant work in this text and in [ 16 ] Scriba shows how close Gregory was to making further major discoveries. In the preface he writes:- Moved by a certain youthful ardour and emboldened by the invention of the elliptic inequality, I have girded myself with these optical speculations, chief among which is the demonstration of the telescope.

Biography James Gregory was born in the Manse of Drumoak. Turnbull writes [ 20 ] :- [ John Gregory ] was a man of courage and foresight but was not conspicuous for outstanding intellectual gifts By the time that Gregory published this work Newton had formed his ideas of the calculus so probably had not been influenced by Gregory.

Gregory was elected to the Royal Society of London before travelling to St Andrews and there starting his family. In he issued his Vera Circuli et Hyperbolae Quadratura , in which he showed how the areas of the circle and hyperbola could be obtained in the form of infinite convergent series. One of Gregory's aims was to have Optica Promota published and he achieved this.

The work we are dealing with is of quite a different character. The dispute had another unfortunate consequence, namely that Gregory became much less keen to announce the methods by which he made his mathematical discoveries and, as a consequence, it was not until Turnbull examined Gregory's papers in the library in St Andrews in the s that the full brilliance of Gregory's discoveries became known.

There at the University of St Andrews , he laid the first meridian line across the floor of his lab in , which was years prior to the Greenwich Meridian being established, and thus "arguably making St Andrews the place where time began".

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This is a small parish on the river Dee, about fifteen kilometres west of Aberdeen. Authority control databases. Wikimedia Commons has media related to James Gregory astronomer and mathematician. On the one hand, the source from which he is getting his inspiration is quite unknown to us.