1851 in science
Encyclopedia
The year 1851 in science
Science
Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe...

and technology
Technology
Technology is the making, usage, and knowledge of tools, machines, techniques, crafts, systems or methods of organization in order to solve a problem or perform a specific function. It can also refer to the collection of such tools, machinery, and procedures. The word technology comes ;...

 involved some significant events, listed below.

Astronomy

  • February - First public exhibition of a Foucault pendulum
    Foucault pendulum
    The Foucault pendulum , or Foucault's pendulum, named after the French physicist Léon Foucault, is a simple device conceived as an experiment to demonstrate the rotation of the Earth. While it had long been known that the Earth rotated, the introduction of the Foucault pendulum in 1851 was the...

    , at the Meridian of the Paris Observatory
    Paris Observatory
    The Paris Observatory is the foremost astronomical observatory of France, and one of the largest astronomical centres in the world...

    , demonstrating the Earth's rotation. A few weeks later Foucault
    Léon Foucault
    Jean Bernard Léon Foucault was a French physicist best known for the invention of the Foucault pendulum, a device demonstrating the effect of the Earth's rotation...

     installs one at the Panthéon
    Panthéon, Paris
    The Panthéon is a building in the Latin Quarter in Paris. It was originally built as a church dedicated to St. Genevieve and to house the reliquary châsse containing her relics but, after many changes, now functions as a secular mausoleum containing the remains of distinguished French citizens...

    .
  • October 24 - Ariel
    Ariel (moon)
    Ariel is the brightest and fourth-largest of the 27 known moons of Uranus. Ariel orbits and rotates in the equatorial plane of Uranus, which is almost perpendicular to the orbit of Uranus, and so has an extreme seasonal cycle....

     and Umbriel
    Umbriel (moon)
    Umbriel is a moon of Uranus discovered on October 24, 1851, by William Lassell. It was discovered at the same time as Ariel and named after a character in Alexander Pope's poem The Rape of the Lock. Umbriel consists mainly of ice with a substantial fraction of rock, and may be differentiated into a...

    , moon
    Natural satellite
    A natural satellite or moon is a celestial body that orbits a planet or smaller body, which is called its primary. The two terms are used synonymously for non-artificial satellites of planets, of dwarf planets, and of minor planets....

    s of Uranus
    Uranus
    Uranus is the seventh planet from the Sun. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. It is named after the ancient Greek deity of the sky Uranus , the father of Cronus and grandfather of Zeus...

    , are discovered by William Lassell
    William Lassell
    William Lassell FRS was an English merchant and astronomer.Born in Bolton and educated in Rochdale after the death of his father, he was apprenticed from 1814 to 1821 to a merchant in Liverpool. He then made his fortune as a beer brewer, which enabled him to indulge his interest in astronomy...

    .

Technology

  • November 13 - First protected submarine telegraph cable
    Submarine communications cable
    A submarine communications cable is a cable laid on the sea bed between land-based stations to carry telecommunication signals across stretches of ocean....

     laid, across the English Channel
    English Channel
    The English Channel , often referred to simply as the Channel, is an arm of the Atlantic Ocean that separates southern England from northern France, and joins the North Sea to the Atlantic. It is about long and varies in width from at its widest to in the Strait of Dover...

    .
  • William Armstrong introduces the weight-loaded hydraulic accumulator
    Hydraulic accumulator
    A 'hydraulic accumulator' is an energy storage device. It is a pressure storage reservoir in which a non-compressible hydraulic fluid is held under pressure by an external source. That external source can be a spring, a raised weight, or a compressed gas...

    .

Births

  • January 19 - Jacobus Kapteyn
    Jacobus Kapteyn
    Jacobus Cornelius Kapteyn, was a Dutch astronomer, best known for his extensive studies of the Milky Way and as the first discoverer of evidence for galactic rotation....

     (d. 1922
    1922 in science
    The year 1922 in science and technology involved some significant events, listed below.-Archaeology:* November 4 - British archaeologist Howard Carter and his men find the entrance to King Tutankhamen's tomb in the Valley of the Kings of Egypt.-Biology:...

    ), astronomer
    Astronomer
    An astronomer is a scientist who studies celestial bodies such as planets, stars and galaxies.Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using...

    .
  • April 12 - E. Walter Maunder
    Edward Walter Maunder
    Edward Walter Maunder was an English astronomer best remembered for his study of sunspots and the solar magnetic cycle that led to his identification of the period from 1645 to 1715 that is now known as the Maunder Minimum....

     (d. 1928
    1928 in science
    The year 1928 in science and technology involved some significant events, listed below.-Biology:* January - Frederick Griffith reports the results of Griffith's experiment, indirectly proving the existence of DNA....

    ), astronomer.
  • July 8 - Arthur Evans
    Arthur Evans
    Sir Arthur John Evans FRS was a British archaeologist most famous for unearthing the palace of Knossos on the Greek island of Crete and for developing the concept of Minoan civilization from the structures and artifacts found there and elsewhere throughout eastern Mediterranean...

     (d. 1941
    1941 in science
    The year 1941 in science and technology involved some significant events, listed below.-Biology:* George Wells Beadle and Edward Lawrie Tatum publish "Genetic Control of Biochemical Reactions in Neurospora" which shows that specific genes code for specific proteins.-Chemistry:* February 23 -...

    ), archaeologist.
  • July 20 - Arnold Pick
    Arnold Pick
    Arnold Pick was a Czech neurologist and psychiatrist. He is known for identifying the clinical syndrome of Pick's Disease and the Pick bodies that are characteristic of the disorder. He was the first to name reduplicative paramnesia. He was also to use the term dementia praecox .- External links...

     (d. 1924
    1924 in science
    The year 1924 in science and technology involved some significant events, listed below.-Astronomy and space exploration:* December 30 - Edwin Hubble announces the existence of other galaxies....

    ), neurologist
    Neurologist
    A neurologist is a physician who specializes in neurology, and is trained to investigate, or diagnose and treat neurological disorders.Neurology is the medical specialty related to the human nervous system. The nervous system encompasses the brain, spinal cord, and peripheral nerves. A specialist...

    .
  • August 3 - George FitzGerald
    George FitzGerald
    George Francis FitzGerald was an Irish professor of "natural and experimental philosophy" at Trinity College in Dublin, Ireland, during the last quarter of the 19th century....

     (d. 1901
    1901 in science
    The year 1901 in science and technology involved some significant events, listed below.-Biology:* Okapi, a relative of the Giraffe found in the rainforests around the Congo River in north east Zaire, is discovered ....

    ), mathematician
    Mathematician
    A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....

    .

Deaths

  • January 27 - John James Audubon
    John James Audubon
    John James Audubon was a French-American ornithologist, naturalist, and painter. He was notable for his expansive studies to document all types of American birds and for his detailed illustrations that depicted the birds in their natural habitats...

     (b. 1785
    1785 in science
    The year 1785 in science and technology involved some significant events.-Aviation:* January 7 - Frenchman Jean-Pierre Blanchard and American John Jeffries travel from Dover, England to Calais, France in a gas balloon, becoming the first to cross the English Channel by air.-Biology:* Antoine...

    ), naturalist
    Natural history
    Natural history is the scientific research of plants or animals, leaning more towards observational rather than experimental methods of study, and encompasses more research published in magazines than in academic journals. Grouped among the natural sciences, natural history is the systematic study...

     and illustrator
    Illustrator
    An Illustrator is a narrative artist who specializes in enhancing writing by providing a visual representation that corresponds to the content of the associated text...

    .
  • February 18 - Carl Gustav Jakob Jacobi
    Carl Gustav Jakob Jacobi
    Carl Gustav Jacob Jacobi was a German mathematician, widely considered to be the most inspiring teacher of his time and is considered one of the greatest mathematicians of his generation.-Biography:...

     (b. 1804
    1804 in science
    The year 1804 in science and technology involved some significant events, listed below.-Astronomy and space science:* April 5 - High Possil meteorite falls in Scotland.* September 1 - Karl Ludwig Harding discovers the asteroid Juno.-Botany:...

    ), mathematician
    Mathematician
    A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....

    .
  • March 9 - Hans Christian Ørsted
    Hans Christian Ørsted
    Hans Christian Ørsted was a Danish physicist and chemist who discovered that electric currents create magnetic fields, an important aspect of electromagnetism...

     (b. 1777
    1777 in science
    The year 1777 in science and technology involved some significant events.-Mathematics:* Leonhard Euler introduces the symbol i to represent the square root of -1.-Births:* February 12 - Bernard Courtois, chemist...

    ), physicist
    Physicist
    A physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...

    .
  • July 17 - John Farey
    John Farey, Jr.
    -Biography.:Farey was the eldest son of John Farey, Sr., the geologist, and was born at Lambeth, London on March 20, 1791. Details of his education are obscure, but he undertook a systematic study of the manufacturing industry of London between 1804-5...

     (b. 1791
    1791 in science
    The year 1791 in science and technology involved some significant events.-Biology:* Jean Baptiste François Pierre Bulliard begins publication of Histoire des champignons de la France, a significant text in mycology....

    ), mechanical engineer
    Mechanical engineering
    Mechanical engineering is a discipline of engineering that applies the principles of physics and materials science for analysis, design, manufacturing, and maintenance of mechanical systems. It is the branch of engineering that involves the production and usage of heat and mechanical power for the...

    and technical writer.
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