The year 1795 in

science Science is a systematic endeavor that Scientific method, builds and organizes knowledge in the form of Testability, testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earli ...

and

technology Technology is the application of knowledge to reach practical goals in a specifiable and reproducible way. The word ''technology'' may also mean the product of such an endeavor. The use of technology is widely prevalent in medicine, scie ...

involved some significant events.

Astronomy

* December 13 – A

meteorite A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or moon. When the original object en ...

falls to Earth at Wold Newton, East Riding of Yorkshire,

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe ...

, the first to be recognised in modern times.

Botany

* National Botanic Gardens (Ireland) opened by the Royal Dublin Society.

Mathematics

* The 18-year-old

Carl Friedrich Gauss Johann Carl Friedrich Gauss (; german: Gauß ; la, Carolus Fridericus Gauss; 30 April 177723 February 1855) was a German mathematician and physicist who made significant contributions to many fields in mathematics and science. Sometimes refe ...

develops the basis for the method of

least squares The method of least squares is a standard approach in regression analysis to approximate the solution of overdetermined systems (sets of equations in which there are more equations than unknowns) by minimizing the sum of the squares of the r ...

analysis.

Medicine

* The British

Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by Kingdom of England, English and Kingdom of Scotland, Scottish kings from the early medieval period, the first major maritime engagements were foug ...

makes the use of lemon juice mandatory to prevent

scurvy Scurvy is a disease resulting from a lack of vitamin C (ascorbic acid). Early symptoms of deficiency include weakness, feeling tired and sore arms and legs. Without treatment, decreased red blood cells, gum disease, changes to hair, and bleeding ...

, largely due to the influence of Gilbert Blane.

Metrology

* April 7 – The

gram The gram (originally gramme; SI unit symbol g) is a unit of mass in the International System of Units (SI) equal to one one thousandth of a kilogram. Originally defined as of 1795 as "the absolute weight of a volume of pure water equal to ...

is decreed in France to be equal to "the absolute weight of a volume of water equal to the cube of the hundredth part of the metre, at the temperature of melting ice."

Paleontology

Georges Cuvier Jean Léopold Nicolas Frédéric, Baron Cuvier (; 23 August 1769 – 13 May 1832), known as Georges Cuvier, was a French naturalist and zoologist, sometimes referred to as the "founding father of paleontology". Cuvier was a major figure in na ...

identifies the

fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...

ised bones of a huge animal found in the

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

in 1770 as belonging to an extinct reptile.

Technology

* November 30 – Joseph Bramah is granted a British patent for

hydraulic machinery Hydraulic machines use liquid fluid power to perform work. Heavy construction vehicles are a common example. In this type of machine, hydraulic fluid is pumped to various hydraulic motors and hydraulic cylinders throughout the machine a ...

, notably the hydraulic press.

Zoology

* Johann Matthäus Bechstein publishes his treatise on songbirds ''Naturgeschichte der Stubenvögel'' ("Natural History of Cage Birds") in Gotha. * Étienne Geoffroy Saint-Hilaire publishes "Histoire des Makis, ou singes de Madagascar", introducing his theory of the unity of organic composition.

Publications

Leonhard Euler Leonhard Euler ( , ; 15 April 170718 September 1783) was a Swiss mathematician, physicist, astronomer, geographer, logician and engineer who founded the studies of graph theory and topology and made pioneering and influential discoveries in ma ...

's '' Letters to a German Princess, On Different Subjects in Physics and Philosophy'' are first translated into English by Scottish minister Henry Hunter, targeted at women, whom Hunter felt Euler intended to educate.

Awards

Copley Medal The Copley Medal is an award given by the Royal Society, for "outstanding achievements in research in any branch of science". It alternates between the physical sciences or mathematics and the biological sciences. Given every year, the medal is t ...

: Jesse Ramsden

Births

* June 30 – Joseph Bienaimé Caventou,

French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...

chemist A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe ...

(died

1877 Events January–March * January 1 – Queen Victoria is proclaimed ''Empress of India'' by the ''Royal Titles Act 1876'', introduced by Benjamin Disraeli, the Prime Minister of the United Kingdom . * January 8 – Great Sio ...

) * December 8 – Peter Andreas Hansen, Danish

astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either o ...

(died 1874) * December 21 ** Francisco Javier Muñiz, Argentine

physician A physician (American English), medical practitioner (Commonwealth English), medical doctor, or simply doctor, is a health professional who practices medicine, which is concerned with promoting, maintaining or restoring health through th ...

and

paleontologist Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of foss ...

(died

1871 Events January–March * January 3 – Franco-Prussian War – Battle of Bapaume: Prussians win a strategic victory. * January 18 – Proclamation of the German Empire: The member states of the North German Confederation and the sout ...

) **

John Russell John Russell may refer to: Arts and entertainment * John Russell (English painter) (1745–1806), English painter * John Russell (Australian painter) (1858–1930), Australian painter * John Russell (screenwriter) (1885–1956), author and scree ...

, English dog breeder (died

1883 Events January–March * January 4 – ''Life'' magazine is founded in Los Angeles, California, United States. * January 10 – A fire at the Newhall Hotel in Milwaukee, Wisconsin, United States, kills 73 people. * Janua ...

)

Deaths

* March 21 – Giovanni Arduino, Italian

geologist A geologist is a scientist who studies the solid, liquid, and gaseous matter that constitutes Earth and other terrestrial planets, as well as the processes that shape them. Geologists usually study geology, earth science, or geophysics, alt ...

(born 1714) * July 3 – Antonio de Ulloa, Spanish explorer (born

1716 Events January–March * January 16 – The application of the Nueva Planta decrees to Catalonia make it subject to the laws of the Crown of Castile, and abolishes the Principality of Catalonia as a political entity, concluding ...

) * June 9 – François Chopart,

surgeon (born

1743 Events January–March * January 1 – The Verendrye brothers, probably Louis-Joseph and François de La Vérendrye, become the first white people to see the Rocky Mountains from the eastern side (the Spanish conquistadors ...

) * June 24 – William Smellie,

Scottish Scottish usually refers to something of, from, or related to Scotland, including: *Scottish Gaelic, a Celtic Goidelic language of the Indo-European language family native to Scotland *Scottish English *Scottish national identity, the Scottish ide ...

naturalist (born

1740 Events January–March * January 8 – All 237 crewmen on the Dutch East India Company ship ''Rooswijk'' are drowned, when the vessel strikes the shoals of Goodwin Sands, off of the coast of England, as it is beginning its secon ...

) * October 1 – Robert Bakewell, English agriculturalist and geneticist (born

1725 Events January–March * January 15 – James Macrae, a former captain of a freighter for the British East India Company, is hired by the Company to administer the Madras Presidency (at the time, the "Presidency of Fort St. Ge ...

) * ''Date unknown'' -

Marie Marguerite Bihéron Marie Marguerite Bihéron (17 November 1719 – 18 June 1795) (also known as Marie Catherine Bihéron) was a French anatomist, known for her medical illustrations and wax figure models. Biography Bihéron was the daughter of a French apothecary ...

, French anatomist (born 1719)

References

{{Reflist 18th century in science 1790s in science