ⓘ मुक्त ज्ञानकोश. क्या आप जानते हैं? पृष्ठ 230

                                               

1792 में विज्ञान

The Xaver, Baron von Zach publishes tables of the Sun, the instrumental work to improve navigation. The first Royal astronomer of Ireland appointed: position aligned with the position of Director of the Dunsink Observatory in Dublin.

                                               

1793 में विज्ञान

October 24 – the French Republican calendar, developed by Gilbert Romm, adopted by the National Assembly. August 8 – the French Academy of Sciences among the academies suppressed by the National Assembly.

                                               

1795 में विज्ञान

April 7 – gram decreed in France, should be equal to "the absolute weight of a volume of water equal to the cube of the hundredth part of the meter at the temperature of melting ice.".

                                               

1797 में विज्ञान

Smithson Tennant shows that the diamond is pure form of carbon. Louis Nicolas Vauquelin discovers chromium. Joseph Proust proposes the law of definite proportions, which States that elements combine in small, whole number ratios to form compounds.

                                               

1799 में विज्ञान

July 15 – in the Egyptian city of Port Rashid Rosetta, French captain Pierre Bouchard finds the Rosetta stone, which became the key to deciphering ancient Egyptian hieroglyphic writing. July 25 – the battle of Abukir in Egypt, Napoleon Bonaparte ...

                                               

1802 में विज्ञान

May 6 – coins William Herschel asteroid and term of July 1, for the first time uses the term double star to indicate the star, which revolves around the other. March 28 – W. Olbers discovers the asteroid Pallas, the second known.

                                               

1803 में विज्ञान

Publication posthumously Andre Michauxs Flora Boreali-Americana in Paris, the first flora of North America. University of Tartu Botanical garden created.

                                               

1805 में विज्ञान

Marie Jules césar Savigny publishes stories Naturelle Et mythologique de libis in Paris, the first illustrated monograph on the IBIS. Jean-Henri pulp Saint-Hilaire publishes the exposition des families naturelles et de La germination de Plantes, ...

                                               

1807 में विज्ञान

Geological society, founded in London, among the most famous of the founders of William Babington, James Parkinson, Humphry Davy and George Bellas Grino.

                                               

1809 में विज्ञान

Carl Friedrich Gauss publishes Theoria Motus corporum TWAIN in sectionibus conicis merge ambientum in Hamburg, introducing Gaussian gravitational constant and containing an influential treatment of the method of least squares. S. D. Poisson publi ...

                                               

1811 में विज्ञान

Johann Karl Wilhelm Illiger publishes Prodromus systematis mammalium Et avium, a taxonomy of the Linnaean and a great influence on the concept of the family in biology. First, he defines the infraclass Marsupialia. Peter Simon Pallas begins publi ...

                                               

1815 में विज्ञान

April 5 – the eruption of the volcano mount Tambora on the Indonesian island of Sumbawa. Approximately 92.000 people die as a direct result of this disaster, the largest volcanic eruption in human history. The eruption sends so much volcanic ash ...

                                               

1816 में विज्ञान

Rene Laennec invented the stethoscope. Caleb parry publishes experimental research about the nature, causes and varieties of the arterial pulse, describing the mechanisms of the pulse.

                                               

1817 में विज्ञान

Leopold Gmelin begins the publication of his Handbuch der theoretischen Chemie. The Discovery Of Selenium Jöns Jacob Berzelius. The discovery of cadmium Friedrich Strohmeyer122. Pierre-Joseph Pelletier and Joseph Bienaime Caventou isolate chlorop ...

                                               

1818 में विज्ञान

Jean city is preparing a report to call for the expansion of medicalization in the treatment of insanity in France. 25 September – in London, Dr James Blundell performs the first blood transfusion using human blood. Carl Ferdinand von Graefe publ ...

                                               

1819 में विज्ञान

July 1 – Johann Georg Trully discovers the Great comet of 1819, C / 1819 N1. This is the first Comet analyzed using polarimetry, Francois Arago. Johann Franz Encke calculates the orbit of comet Encke, who defined it as a periodic.

                                               

1820 में विज्ञान

Christian Friedrich Nasse formulates Nasses law: hemophilia occurs only in males and is transmitted by asymptomatic women. Land reserved for the construction of the Botanical garden in Washington, D.C.

                                               

1822 में विज्ञान

Jean Baptiste Julien dOmalius dHalloy defines the Cretaceous period. It also offers Jurassic. John Phillips and William Conybeare identify the Carboniferous period. Georges Cuvier establishes new standards and methods in stratigraphy and paleonto ...

                                               

1823 में विज्ञान

Cambridge Observatory, created in England. December 29 – the Great comet in 1823 for the first time observed. Olbers paradox, described by the German astronomer Olbers Heinrich Wilhelm Matth? us.

                                               

1824 में विज्ञान

Franz von Gruithuisen explains the formation of craters on the moon are the result of meteorite impact. William Pearson publishes an introduction to practical astronomy.

                                               

1825 में विज्ञान

Pierre-Simon Laplace completes his study of gravitation, the stability of the Solar system, the tides, the precession of the equinoxes, the libration of the moon and Saturns rings in the publication of the fifth and final volume of mechanisms Cel ...

                                               

1828 में विज्ञान

Karl Ernst von Baer laid the foundations of the science of comparative embryology with his book Uber Entwickelungsgeschichte Der Thiere. He published the laws of von Baer. April 27 – London zoo in Regents Park opens for members of the Zoological ...

                                               

1831 में विज्ञान

March 7 – Royal astronomical society receives a Royal Charter. Mary Somerville translates mechanisms Laplaces Celeste as the mechanism of the heavens. Heinrich Schwabe makes the first detailed drawing of the Great red Spot on Jupiter. January 7 – ...

                                               

1834 में विज्ञान

March 14 – John Herschel discovers the open cluster of stars now known as NGC 3603. Johann Heinrich von Madler and Wilhelm beer to publish Mappa Selenographica, the most complete map of the moon at this time. Thomas Henderson was appointed the fi ...

                                               

1835 में विज्ञान

Caroline Herschel and Mary Somerville became the first female member of the Royal astronomical society. August 25 – the first of six articles about the discoveries of living creatures on the moon supposedly made by Herschel and fictitious compani ...

                                               

1837 में विज्ञान

March–July – Charles Darwin begins privately to develop his theory of transmutation of species. November 6 – the creation of the Park in Boston, Massachusetts, as the Botanical garden, the first in the United States will be open to the public.

                                               

1838 में विज्ञान

Peter Andreas Hansen publishes a revision of the lunar theory, Foundation of Nova investigationis orbitae verae Quam Luna perlustrat. Friedrich Wilhelm Bessel makes the first accurate measurement of the distance to the star 61 Cygnus, using paral ...

                                               

1840 में विज्ञान

William Whewell publishes the philosophy of the inductive Sciences, representing scientists, the conditions for the second time, and a physicist. Justus von Liebig publishes die Organische Chemie in Anwendung jireh agricultur Auf UND Physiologie ...

                                               

1843 में विज्ञान

April 5 February 19 – "the Great March comet" was observed. 11-14 March – This Keel of the rocket to become the second star. Heinrich Schwabe reports a periodic change in the number of sunspots: they wax and wane in the amount of ten-year cycle.

                                               

1845 में विज्ञान

August 28 – the journal "scientific American" begins publication. Alexander von Humboldts Kosmos: Entwurf einer physischen Weltbeschreibung begins publication. January 14 – Physikalische-Gesellschaft Berlin created and starts publishing Fortschri ...

                                               

1846 में विज्ञान

February 20 – Francesco de Vico discovers the first comet 122p / de Vico. August 31 – Urbain Le Verrier publishes full information about the Orbit and mass of the new planet. October 10 – William Lassell discovers Triton, the largest moon of Nept ...

                                               

1849 में विज्ञान

Edouard Roche finds the limiting radius of tidal destruction and creation for a body held together only by its own gravity, called the Roche limit, and uses it to explain why Saturns rings is not turned into a Satellite.

                                               

1850 में विज्ञान

Rewilding ascension begins. (Rewilding восхождения начинается) 25 may – young Hippopotamous Obaysch arrives at London zoo from Egypt, the first seen in Europe since the Roman Empire.

                                               

1852 में विज्ञान

The latter admit that they have seen many AUK, on the Grand banks of Newfoundland. October 5 – American beekeeper L. L. Langstroth patent hive-lounger for the cultivation of bees.

                                               

1853 में विज्ञान

Anton de Bary publishes the first study showing that the rust and smut fungi cause diseases of plants. March 17 – Claude Bernard presented his doctoral thesis describing the glycogenetic function of the liver.

                                               

1855 में विज्ञान

Robert REMAK publishes Untersuchungen Uber die Entwickelung Der Wirbelthiere in Berlin, providing evidence for cell division that is supported but not recognized by Rudolf Virchow. September – Alfred Russell Wallace publishes "on the law which re ...

                                               

1856 में विज्ञान

NGC 6539 discovered by Theodor Brorsen. N. R. Pogson suggests that the ratios used in the Hipparcos stellar apparent magnitude system should be adopted as standard.

                                               

1858 में विज्ञान

In Luxor, Egypt, the Rhind papyrus found named for Alexander Henry Rhind, who discovered it is sometimes called the Ahmose papyrus of the scribe who wrote it around 1650 BC.

                                               

1859 में विज्ञान

May 26 and June 2 geologist Joseph Prestwich and the Amateur archaeologist John Evans report from the Royal society and the society of antiquaries of London respectively, the results of their investigations of gravel-pits of the Somme valley and ...

                                               

1860 में विज्ञान

18 July – a total solar Eclipse. Warren de La rues photos of this event taken in Spain, together with Angelo Secchi, demonstrate the solar character of the prominences or red flames, seen around the limb of the moon during this Eclipse.

                                               

1861 में विज्ञान

Charles Thorpe, archdeacon of Durham D. 1862, organizes the purchase of some of the farne Islands off the North-East coast of England and the employment inspector for the protection of endangered seabird species. Anton de Bary published his first ...

                                               

1865 में विज्ञान

John Lubbock publishes prehistoric times, as shown by ancient remains and the manners and customs of modern savages, including his coinage of the term Palæolithic.

                                               

1866 में विज्ञान

Giovanni Schiaparelli realizes that meteor streams occur when the Earth passes through the orbit of a comet that has left debris in its path. May – William Huggins studies the spectrum of radiation of a Nova and discovers that it is surrounded by ...

                                               

1871 में विज्ञान

8 October 2 June – Hayden geological survey of 1871 in the United States, including what will be in the next year will be the national Park Yellowstone. In the period from July 21 to 26, the first ever photos of this region taken by William Henry ...

                                               

1873 में विज्ञान

Jacobus Henricus van T Hoff and Joseph Achilles Le Bel, working independently, develop a model of chemical bonding that explains the chirality experiments of Pasteur and provides a physical causes of optical activity of chiral compounds.

                                               

1878 में विज्ञान

The English astronomer Richard A. Proctor describes the zone of avoidance, the area of the night sky, what lies in our own galaxy, for the first time.

                                               

1885 में विज्ञान

The bacterium Salmonella enterica discovered by Theobald Smith, working under Daniel Elmer salmon. Bacteria Escherichia coli E. coli was discovered by Theodor Escherich. The genus Plasmodium is described by Ettore Marchiafava and Angelo Celli.

                                               

1886 में विज्ञान

February 6 – the German chemist Clemens Winkler opens chemical element Germanium. June 26 – Henri Moissan reported the successful isolation of elemental fluorine by electrolysis of a solution of potassium hydrogen difluoride in liquid hydrogen fl ...

                                               

1887 में विज्ञान

April – carte du Ciel project, initiated by the Director of the Paris Observatory Amedee Mouchez. Theodor von der Finsternisse Oppolzers Canon, a collection of 8.000 solar and lunar eclipses 5.200 from 1200 BC to 2161 ad, published posthumously.

                                               

1891 में विज्ञान

The New Zealand government allocates a resolution island in Fiordland as a nature reserve. The new York Botanical garden was founded in the Bronx, largely through the efforts of Nathaniel Lord Britton. Jane Willis Kirkaldy and Catherine Pollard b ...

                                               

1893 में विज्ञान

Henry Luke Bolley finds a method of treating smut with formaldehyde. July 11 – Kōkichi Mikimoto in Japan, develops the method to seed and grow cultured pearls.

                                               

1896 में विज्ञान

Svante Arrhenius formulated a "greenhouse law" and becomes the first person to predict that emissions of carbon dioxide from fossil fuel burning and other combustion processes are large enough to cause global warming through the greenhouse effect.

                                               

1909 में विज्ञान

Summer – Fritz Haber and Carl Bosch, first, to demonstrate the process Haber process the catalytic formation of ammonia from hydrogen and atmospheric nitrogen under conditions of high temperature and pressure. The concept of p as a measure of the ...

                                               

1919 में विज्ञान

The Betzs law published by the German physicist albert Betz, with an indication of the maximum power that can be extracted from the wind, regardless of the design of a wind turbine in open flow. Arnold Sommerfeld and Walther Kossel publish their ...

                                               

1920 में विज्ञान

December 13 – the red giant star Betelgeuse is the first to have its diameter determined by the optical astronomical interferometer, stellar interferometer of Michelson on the reflector telescope Observatorys mount Wilson. January 13 – the new Yo ...

                                               

1926 में विज्ञान

Waldo Semon and the B. F. Goodrich company to develop a method of plasticizing polyvinyl chloride, giving it commercial potential. PCP Angel dust, Angel dust is the first synthesized.

                                               

1928 में विज्ञान

Jan – Frederick Griffith reports the results of Griffiths experiment, indirectly proving existence of DNA. September 3 – Alexander Fleming, at St Marys hospital, London, accidentally restores the antibiotic penicillin, forgotten as Ernest Duchesn ...

                                               

1929 में विज्ञान

Edwin Hubble publishes his discovery that the speed at which galaxies recede positively correlates with their distance, which becomes known as Hubbles law, the basis for understanding that the universe is expanding. Konstantin Tsiolkovsky propose ...

                                               

1930 में विज्ञान

January 15 – the Moon moves to perigee at the same time as moon phase reaches its maximum. This is the closest distance the Moon is in 356.397 km in recent memory, and it will not be close to 2257. Bernhard Schmidt invented the Schmidt camera. Fe ...

                                               

1932 में विज्ञान

August 10 – a 5.1 kg chondrite-type meteorite breaks into fragments and strikes earth near the town of Archie, Missouri. The Estonian astronomer Ernst Opik postulated that long-period comets originate in the orbit of the cloud Opik–Oort cloud at ...

                                               

1933 में विज्ञान

Sir Arthur Eddington publishes the expanding Universe: Astronomys great debate, 1900-1931, Cambridge. Fritz Zvika postulates the existence of dark matter. Humorist hay notes periodic great white spot on Saturn from his private Observatory in Lond ...

                                               

1934 में विज्ञान

Richard Tolman shows that blackbody radiation in an expanding Universe cools but remains warm. Georges Lemaitre interpreterpath the cosmological constant as due to vacuum energy with an unusual perfect fluid equation of state.

                                               

1937 में विज्ञान

Meredith Crawford publishes the first results of the cooperative paradigm is to pull with chimpanzees in the United States. Jay Lawrence lush publishes the influential textbook animal breeding plans in the United States. The citric acid cycle, fi ...

                                               

1939 में विज्ञान

November 6 – Sonderaktion Krakau: scientists Gestapo arrests from the Jagiellonian University and other institutions in Krakow, Poland, November 27, they were sent to the Sachsenhausen concentration camp. 26 Jan - the announcement of the atomic a ...

                                               

1942 में विज्ञान

February 27 – James Stanley Hey, a British army research officer, first to detect radio waves emitted by the Sun, helping the pioneers of radio astronomy. October 3 – first rocket "V-2" was successfully launched from test stand VII in Peenemunde. ...

                                               

1943 में विज्ञान

Oxford University acquires the surrounding White forest, which became an important center of research in the field of ecology in England. July 21 – living specimens of metasequoia glyptostroboides, the Dawn Redwood, previously known only as fossi ...

                                               

1944 में विज्ञान

The last known proof of the existence of the Asiatic lion in the wild in the Iranian province of Khuzestan. Erwin schrödinger publishes What is life?, contains a conceptual discussion of the genetic code and negentropy. LPS nature of intestinal e ...

                                               

1952 में विज्ञान

In Braeburn Apple variety discovered as a chance seedling in New Zealand. September 20 – publication of an article on Hershey–chase experiment proves that DNA, not protein, is genetic material of bacteriophages. Biochemists Jack gross and Rosalin ...

                                               

1953 में विज्ञान

In 1953 involved many significant events in the field of science and technology, including the first description of the DNA double helix, the discovery of neutrinos, and the release of the first polio vaccine.

                                               

1954 में विज्ञान

November 30 – in sylacauga, Alabama, an 8.5 pound sulfide meteorite crashes through a roof and hits Mrs. Elizabeth Hodges in her living room after Bouncing off her Radio, giving her a bruise, the first known modern case of a human hit by a space ...

                                               

1963 में विज्ञान

November 1 – Arecibo Observatory with the worlds largest single-dish radio telescope, officially opened in Arecibo, Puerto Rico. The first unambiguous identification of a Radio source, 3C 48, with an optical object, later identified as a quasar, ...

                                               

1965 में विज्ञान

The opening of the NML Cygnus, a red hypergiant and the largest known star, about 1.650 times the radius of the Sun. March 23 – the launch of NASAs "Gemini 3" in the U.S. the first two-man spaceflight crew: Gus Grissom and John young. November 26 ...

                                               

1967 में विज्ञान

January 27 – Apollo 1 burned during a fire on the launch pad. January 27 – the USA, USSR and UK sign the outer space Treaty. October 18 – the Soviet probe Venera 4 descends through the Venusian atmosphere, which it analyzes. October 19 – the Mari ...

                                               

1968 में विज्ञान

July 18 – the semiconductor chips, Intel, founded by Gordon Moore and Robert Noyce in mountain view, California. December 9 – in what would be retrospectively known as the "mother of all demonstrations", Doug Engelbart from Stanford research Inst ...

                                               

1969 में विज्ञान

May 16 – Venera program: Venera 5, a Soviet spaceprobe, lands on Venus. May 18 – Apollo program: Apollo 10 launches. May 22 – Apollo program: the lunar module of Apollo 10 flies to 15.400 m of the surface of the moon. January 15 – the Soviet Unio ...

                                               

1970 में विज्ञान

February 11 – Japan becomes the fourth country to launch a satellite into orbit. March 31 – Explorer I reentry after 12 years in orbit. April 11 – Apollo 13 ill-fated space mission launched. August 17 – Venera program: Venera 7 is launched. He la ...

                                               

1977 में विज्ञान

September 20 – Petrozavodsk phenomenon is observed in the Northern sky. The opening of the Carina dwarf galaxy with a telescope the UK Schmidt. August 15 – Ohio state University radio Observatory, working on the project network, receives a strong ...

                                               

1985 में विज्ञान

In Buckminsterfullerene fullerene with 60 first intentionally prepared by Harold Kroto, James R. Heath, Sean obrien, Robert Curl and Richard Smalley at rice University in the United States.

                                               

1986 में विज्ञान

March 8 – the Japanese Suisei spacecraft flies by Halleys Comet, studying its UV hydrogen corona and solar wind. January 28 – NASA space Shuttle "Challenger" explodes on launch, killing all seven astronauts on Board. Their bodies are in the milit ...

                                               

1987 में विज्ञान

10500 Nishi-kun discovered. (10500 Ниси-кун обнаружен) February 23 – supernova 1987A is observed, the first "naked eye" supernova since 1604. Asteroid 7816 Hanoi discovered by Masahiro Koishikawa.

                                               

1988 में विज्ञान

September 29 – NASA resumes space Shuttle flights, suspended after the Challenger disaster. November 15 – in the Soviet Union, the unmanned Shuttle Buran is launched by a rocket "Energia" during his first orbital space flight it was the first and ...

                                               

1990 में विज्ञान

August 16 – Stephen Balbi making their first discoveries leading to the elucidation of the magnetorotational instability. January 24 – Japan launches the Hiten spacecraft, the first lunar probe launched by a country other than Soviet Union or the ...

                                               

1994 में विज्ञान

On 31 March, the journal Nature reports the finding in Ethiopia of the first complete skull of Australopithecus avarskikh significant in the study of human evolution. The Australopithecus skeleton of "Little foot" is defined in South Africa. Dece ...

                                               

1996 में विज्ञान

January 30 – comet Hyakutake is discovered. Second 9.8 m reflecting telescope opens at the Keck Observatory, Mauna Kea, Hawaii. November 7 – NASA launches the Mars global surveyor. May – first naked eye observation of comet Hale-BOPP. June 4 – cl ...

                                               

1998 में विज्ञान

October 29 – space Shuttle Discovery blasts-from 77-year-old John Glenn on Board, making him the oldest person to fly in space. He became the first American to orbit the Earth on 20 February 1962. August 22 – annular solar Eclipse. March 2 – data ...

                                               

1999 में विज्ञान

February 27 – while trying to circumnavigate the world by balloon, Colin Prescott and Andy Elson set a new endurance record after their balloon for 233 hours and 55 minutes. 3-20 March – Bertrand Piccard and Brian Jones successfully complete a no ...

                                               

2000 में विज्ञान

August 10 – edition m-Sigma relations in Astrophysical journal. May 4 – a rare astronomical conjunction occurs on the new moon including all seven of the traditional celestial bodies known from ancient times to the discovery of Uranus in 1781, th ...

                                               

2002 में विज्ञान

December 4 – solar Eclipse 4 December 2002 total solar Eclipse. 25 September 2002 Vitim event, a possible bolide impact in Irkutsk oblast, Russia. 19 Feb – NASAs 2001 Mars space probe Odyssey begins to map the surface of Mars using its thermal em ...

                                               

वैज्ञानिक पत्रिका

In academic publishing, a scientific journal is a periodical publication intended to further progress of science, usually, according to new research.

                                               

ध्वनिक (पत्रिका)

Acoustic was co-founder of Steve Harvey in 2004. Harvey edited the first twenty volumes of the journal, which is part of blaze publishing LTD. Initially twice a month, now monthly publication, and carries reviews, features, lessons, vintage guita ...

                                               

ब्रिटिश जर्नल मनोरोग विज्ञान के

British journal of psychiatry is a peer-reviewed medical journal for all fields of psychiatry with a special emphasis on clinical aspects of each topic. The journal is the property of the Royal College of psychiatrists and published monthly by Ca ...

                                               

गणितीय भौतिकी जर्नल, विश्लेषण, ज्यामिति

Journal of mathematical physics, analysis, geometry is a quarterly peer-reviewed academic journal covering mathematics applied to physics. It has a Verkin Institute for low temperature physics and technology was created in 1944 as mathematical ph ...

                                               

जर्नल के Irreproducible परिणामों

Journal of irreproducible results-Wikipedia this is a magazine of science humor. The journal was founded in Israel in 1955 by virologist Alexander Kohn and physicist Harry J. Lipkin, who wanted a humor magazine about science and scientists. It co ...

                                               

Zoologicheskii Zhurnal

Zool is a peer-reviewed scientific journal in Russia, which covers research in Zoology. The journal was established in 1916, Alexei Severtsov.

                                               

मारबर्ग के जर्नल धर्म

In the Marburg journal of religion is a peer-reviewed scientific e journal that publishes articles on empirical and theoretical studies of religion. The first number appeared in April 1996. The original concept was developed by Michael Pye, toget ...

                                               

खगोल विज्ञान पत्र

Letters to Astronomical journal-Russian peer-reviewed scientific journal. The scope of the journal covers research on all aspects of astronomy and astrophysics including high energy Astrophysics, cosmology, space astronomy, theoretical astrophysi ...

                                               

कंप्यूटर पत्रिकाओं की सूची

This is a list of magazines distributed mainly in the computer and technology enthusiasts or users. Most of these magazines on a computer or a few specific subject areas, but few of them also specializiruetsya in a certain area of computing and a ...

                                               

यूक्रेनी ऐतिहासिक जर्नल

Ukrainian historical journal is published twice a month at the Institute of history of Ukraine National Academy of Sciences of Ukraine. The journal was founded in 1957.

                                               

सूची के दर्शन पत्रिकाओं

Research Arendt. (Исследования Арендт) Public Affairs Quarterly. (Государственными Делами Ежеквартально) The materials of the American Catholic philosophical Association. The journal of aesthetics and art criticism. Philosophical Studies. (Филосо ...

                                               

हिंसक प्रकाशन

Predatory publishing activities, sometimes called write only to publish, or deceptive publication is exploitative academic publishing business model that involves charging publication fees to authors of articles without checking the quality or le ...

यह वेबसाइट कुकीज़ का उपयोग करती है। कुकीज़ आपको याद हैं इसलिए हम आपको एक बेहतर ऑनलाइन अनुभव दे सकते हैं।
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