Journal des sçavans

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Ole Rømer's determination of the speed of light was published in the journal, which established that light did not propagate instantly. It came to about 26% slower than the actual value.

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Speed of light Speed at which all massless particles and associated fields travel in a vacuum

The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its exact value is defined as 299792458 metres per second. It is exact because by international agreement a metre is defined as the length of the path travelled by light in vacuum during a time interval of ​1299792458 second. According to special relativity, c is the upper limit for the speed at which conventional matter and information can travel. Though this speed is most commonly associated with light, it is also the speed at which all massless particles and field perturbations travel in vacuum, including electromagnetic radiation and gravitational waves. Such particles and waves travel at c regardless of the motion of the source or the inertial reference frame of the observer. Particles with nonzero rest mass can approach c, but can never actually reach it. In the special and general theories of relativity, c interrelates space and time, and also appears in the famous equation of mass–energy equivalence E = mc2.

Sir George Stokes, 1st Baronet British mathematician and physicist

Sir George Gabriel Stokes, 1st Baronet, was an Anglo-Irish physicist and mathematician. Born in County Sligo, Ireland, Stokes spent all of his career at the University of Cambridge, where he was the Lucasian Professor of Mathematics from 1849 until his death in 1903. As a physicist, Stokes made seminal contributions to fluid mechanics, including the Navier–Stokes equations, and to physical optics, with notable works on polarization and fluorescence. As a mathematician, he popularised "Stokes' theorem" in vector calculus and contributed to the theory of asymptotic expansions. Stokes, along with Felix Hoppe-Seyler, first demonstrated the oxygen transport function of hemoglobin and showed color changes produced by aeration of hemoglobin solutions.

This article presents lists of the literary events and publications in 1665.

Academic journal peer-reviewed periodical relating to a particular academic discipline

An academic or scholarly journal is a periodical publication in which scholarship relating to a particular academic discipline is published. Academic journals serve as permanent and transparent forums for the presentation, scrutiny, and discussion of research. They are usually peer-reviewed or refereed. Content typically takes the form of articles presenting original research, review articles, and book reviews. The purpose of an academic journal, according to Henry Oldenburg, is to give researchers a venue to "impart their knowledge to one another, and contribute what they can to the Grand design of improving natural knowledge, and perfecting all Philosophical Arts, and Sciences."

Savant syndrome combination of mental disabilities and specific outstanding abilities

Savant syndrome is a condition in which someone with significant mental disabilities demonstrates certain abilities far in excess of average. The skills at which savants excel are generally related to memory. This may include rapid calculation, artistic ability, map making, or musical ability. Usually just one special skill is present.

Laurent Cassegrain was a Catholic priest who is notable as the probable inventor of the Cassegrain reflector, a folded two-mirror reflecting telescope design.

The year 1802 in science and technology involved some significant events, listed below.

The year 1784 in science and technology involved some significant events.

The year 1665 in science and technology involved some significant events.

Royal Society national academy of science in the United Kingdom

The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. Founded on 28 November 1660, it was granted a royal charter by King Charles II as "The Royal Society". It is the oldest national scientific institution in the world. The society fulfils a number of roles: promoting science and its benefits, recognising excellence in science, supporting outstanding science, providing scientific advice for policy, fostering international and global co-operation, education and public engagement.

Proceedings of the Royal Society is the parent title of two scientific journals published by the Royal Society. Originally a single journal, it was split into two separate journals in 1905:

Henry Oldenburg German theologian

Henry Oldenburg FRS was a German theologian known as a diplomat, a natural philosopher and as the creator of scientific peer review. He was one of the foremost intelligencers of Europe of the seventeenth century, with a network of correspondents to rival those of Fabri de Peiresc, Marin Mersenne and Ismaël Boulliau. At the foundation of the Royal Society he took on the task of foreign correspondence, as the first Secretary.

<i>Philosophical Transactions of the Royal Society</i> Scientific journal published by the Royal Society

Philosophical Transactions of the Royal Society is a scientific journal published by the Royal Society. In its earliest days, it was a private venture of the Royal Society's secretary. It became an official society publication in 1752. It was established in 1665, making it the first journal in the world exclusively devoted to science, and therefore also the world's longest-running scientific journal. The use of the word philosophical in the title refers to natural philosophy, which was the equivalent of what would now be generally called science.

Jean-Antoine Nollet French clergyman and physicist

Jean-Antoine Nollet was a French clergyman and physicist who did a number of experiments with electricity and discovered osmosis. As a priest, he was also known as Abbé Nollet.

Barometric light is a name for the light that is emitted by a mercury-filled barometer tube when the tube is shaken. The discovery of this phenomenon in 1675 revealed the possibility of electric lighting.

Denis de Sallo, Sieur de la Coudraye was a French writer and lawyer from Paris, known as the founder of the first French, and European literary and scientific journal - the Journal des sçavans.

Sidera Lodoicea Moons of Saturn

Sidera Lodoicea is the name given by the astronomer Giovanni Domenico Cassini to the four moons of Saturn discovered by him in the years 1671, 1672, and 1684 and published in his Découverte de deux nouvelles planètes autour de Saturne in 1673 and in the Journal des sçavans in 1686. These satellites are today known by the following names, given in 1847:

<i>Philosophical Transactions of the Royal Society B</i> journal

Philosophical Transactions of the Royal Society B: Biological Sciences is a biweekly peer-reviewed scientific journal published by the Royal Society. The editor-in-chief is John Pickett.

<i>Philosophical Transactions of the Royal Society A</i> journal

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences is a fortnightly peer-reviewed scientific journal published by the Royal Society. It publishes original research and review content in a wide range of physical scientific disciplines. Articles can be accessed online a few months prior to the printed journal. All articles become freely accessible two years after their publication date. The current editor-in-chief is John Dainton.

Rømers determination of the speed of light 1676 experiment which showed that light has finite speed

Rømer's determination of the speed of light was the demonstration in 1676 that light has a finite speed and so does not travel instantaneously. The discovery is usually attributed to Danish astronomer Ole Rømer (1644–1710), who was working at the Royal Observatory in Paris at the time.


  1. The Amsterdam printing of the Journal des sçavans, Dibner Library of the Smithsonian Institution
  2. Brown, 1972, p. 368
  3. Hallam, 1842, p. 406.
  4. Partridge, Linda (March 6, 2015). "Celebrating 350 years of Philosophical Transactions: life sciences papers". Philosophical Transactions of the Royal Society B: Biological Sciences. The Royal Society. 370 (1666): 1. doi:10.1098/rstb.2014.0380. PMC   4360128 . PMID   25750243.

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