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John Napier of Merchiston, nicknamed Marvellous Merchiston, was a Scottish landowner known as a mathematician, physicist, and astronomer. He was the 8th Laird of Merchiston. His Latinized name was Ioannes Neper.
1614 (MDCXIV) was a common year starting on Wednesday of the Gregorian calendar and a common year starting on Saturday of the Julian calendar, the 1614th year of the Common Era (CE) and Anno Domini (AD) designations, the 614th year of the 2nd millennium, the 14th year of the 17th century, and the 5th year of the 1610s decade. As of the start of 1614, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.
Mathematical tables are lists of numbers showing the results of a calculation with varying arguments. Trigonometric tables were used in ancient Greece and India for applications to astronomy and celestial navigation, and continued to be widely used until electronic calculators became cheap and plentiful in the 1970s, in order to simplify and drastically speed up computation. Tables of logarithms and trigonometric functions were common in math and science textbooks, and specialized tables were published for numerous applications.
George Edwards was an English naturalist and ornithologist, known as the "father of British ornithology".
The year 1879 in science and technology involved some significant events, listed below.
The year 1616 in science and technology involved some significant events.
The year 1617 in science and technology involved some significant events.
Dupuytren's contracture is a condition in which one or more fingers become permanently bent in a flexed position. It is named after Guillaume Dupuytren, who first described the underlying mechanism of action, followed by the first successful operation in 1831 and publication of the results in The Lancet in 1834. It usually begins as small, hard nodules just under the skin of the palm, then worsens over time until the fingers can no longer be fully straightened. While typically not painful, some aching or itching may be present. The ring finger followed by the little and middle fingers are most commonly affected. It can affect one or both hands. The condition can interfere with activities such as preparing food, writing, putting the hand in a tight pocket, putting on gloves, or shaking hands.
Baron Guillaume Dupuytren was a French anatomist and military surgeon. Although he gained much esteem for treating Napoleon Bonaparte's hemorrhoids he is best known today for his description of Dupuytren's contracture, which is named after him and on which he first operated in 1831 and published in The Lancet in 1834.
Pott's fracture, also known as Pott's syndrome I and Dupuytren fracture, is an archaic term loosely applied to a variety of bimalleolar ankle fractures. The injury is caused by a combined abduction external rotation from an eversion force. This action strains the sturdy medial (deltoid) ligament of the ankle, often tearing off the medial malleolus due to its strong attachment. The talus then moves laterally, shearing off the lateral malleolus or, more commonly, breaking the fibula superior to the tibiofibular syndesmosis. If the tibia is carried anteriorly, the posterior margin of the distal end of the tibia is also sheared off by the talus. A fractured fibula in addition to detaching the medial malleolus will tear the tibiofibular syndesmosis. The combined fracture of the medial malleolus, lateral malleolus, and the posterior margin of the distal end of the tibia is known as a "trimalleolar fracture".
Jean Cruveilhier was a French anatomist and pathologist.
Philippe Ricord was a French physician.
Felix Platter was a Swiss physician, well known for his classification of psychiatric diseases, and was also the first to describe an intracranial tumour.
Plater is a surname, and may refer to:
The history of logarithms is the story of a correspondence between multiplication on the positive real numbers and addition on the real number line that was formalized in seventeenth century Europe and was widely used to simplify calculation until the advent of the digital computer. The Napierian logarithms were published first in 1614. E. W. Hobson called it "one of the very greatest scientific discoveries that the world has seen." Henry Briggs introduced common logarithms, which were easier to use. Tables of logarithms were published in many forms over four centuries. The idea of logarithms was also used to construct the slide rule, which became ubiquitous in science and engineering until the 1970s. A breakthrough generating the natural logarithm was the result of a search for an expression of area against a rectangular hyperbola, and required the assimilation of a new function into standard mathematics.
Edward Wright was an English mathematician and cartographer noted for his book Certaine Errors in Navigation, which for the first time explained the mathematical basis of the Mercator projection by building on the works of Pedro Nunes, and set out a reference table giving the linear scale multiplication factor as a function of latitude, calculated for each minute of arc up to a latitude of 75°. This was in fact a table of values of the integral of the secant function, and was the essential step needed to make practical both the making and the navigational use of Mercator charts.
Thomas Wharton (1614–1673) was an English physician and anatomist best known for his descriptions of the submandibular duct and Wharton's jelly of the umbilical cord.
Mirifici Logarithmorum Canonis Descriptio and Mirifici Logarithmorum Canonis Constructio are two books in Latin by John Napier expounding the method of logarithms. While others had approached the idea of logarithms, notably Jost Bürgi, it was Napier who first published the concept, along with easily used precomputed tables, in his Mirifici Logarithmorum Canonis Descriptio.
The year 1536 in science and technology included a number of events, some of which are listed here.
John Speidell was an English mathematician. He is known for his early work on the calculation of logarithms.