The year 1671 in

science Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into twoor threemajor branches: the natural sciences, which stu ...

and

technology Technology is the application of Conceptual model, conceptual knowledge to achieve practical goals, especially in a reproducible way. The word ''technology'' can also mean the products resulting from such efforts, including both tangible too ...

involved some significant events.

Astronomy

* Completion of

Paris Observatory The Paris Observatory (, ), a research institution of the Paris Sciences et Lettres University, is the foremost astronomical observatory of France, and one of the largest astronomical centres in the world. Its historic building is on the Left Ban ...

, the world's first such national institution. * February 27 – The

Ortenau The Ortenau (), originally called Mortenau, is a historic region in the present-day German state of Baden-Württemberg. It is located on the right bank of the river Rhine, stretching from the Upper Rhine Plain to the foothill zone of the Black F ...

meteorite lands in Germany. * October 25 – Italian-born French astronomer

Giovanni Domenico Cassini Giovanni Domenico Cassini (8 June 1625 – 14 September 1712) was an Italian-French mathematician, astronomer, astrologer and engineer. Cassini was born in Perinaldo, near Imperia, at that time in the County of Nice, part of the Savoyard sta ...

discovers

Iapetus In Greek mythology, Iapetus (; ; ), also Japetus, is a Titan, the son of Uranus and Gaia and father of Atlas, Prometheus, Epimetheus, and Menoetius. He was also called the father of Buphagus and Anchiale in other sources. Iapetus was linked ...

, the second known moon of the planet

Saturn Saturn is the sixth planet from the Sun and the second largest in the Solar System, after Jupiter. It is a gas giant, with an average radius of about 9 times that of Earth. It has an eighth the average density of Earth, but is over 95 tim ...

Mathematics

* James Gregory develops a series expansion for the inverse tangent function and discovers

Taylor's theorem In calculus, Taylor's theorem gives an approximation of a k-times differentiable function around a given point by a polynomial of degree k, called the k-th-order Taylor polynomial. For a smooth function, the Taylor polynomial is the truncation a ...

. * publishes ''Kokin-Sanpo-Ki'' (古今算法之記), in which he gives the first comprehensive applied account of Chinese

algebra Algebra is a branch of mathematics that deals with abstract systems, known as algebraic structures, and the manipulation of expressions within those systems. It is a generalization of arithmetic that introduces variables and algebraic ope ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

Medicine

* Publication of ''Les secrets de la medecine des Chinois'', the first Western book on traditional Eastern medicine, in

Grenoble Grenoble ( ; ; or ; or ) is the Prefectures in France, prefecture and List of communes in France with over 20,000 inhabitants, largest city of the Isère Departments of France, department in the Auvergne-Rhône-Alpes Regions of France, region ...

. * Publication of

Jane Sharp Jane Sharp (c. 1641–1671) was an English midwife. Her work ''The Midwives Book: or the Whole Art of Midwifery Discovered'', published in 1671, was the first on the subject to be produced by an Englishwoman. Life Little is known of Sharp's li ...

's ''The Midwives Book: or the Whole Art of Midwifry Discovered'', the first on the subject to be written by an Englishwoman.

Physics

Jacques Rohault Jacques Rohault (; 1618 – 27 December 1672) was a French philosopher, physicist and mathematician, and a follower of Cartesianism. Life Rohault was born in Amiens, the son of a wealthy wine merchant, and educated in Paris. Having grown up with ...

publishes ''Traité de physique'' in Paris, disseminating

Cartesian physics ''The World'', also called ''Treatise on the Light'' ( French title: ''Traité du monde et de la lumière''), is a book by René Descartes (1596–1650). Written between 1629 and 1633, it contains a nearly complete version of his philosophy, fr ...

Technology

* March 31 – The English

Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...

launches HMS ''Royal James'' at Portsmouth Royal Dockyard, its first warship to have a frame reinforced by iron bars rather than an all wooden ship, an innovation by naval architect Anthony Deane.

Births

* October 1 – Guido Grandi,

Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, a Romance ethnic group related to or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance languag ...

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...

(died

1742 Events January–March * January 9 – Robert Walpole is made Earl of Orford, and resigns as First Lord of the Treasury and Chancellor of the Exchequer, effectively ending his period as Prime Minister of Great Britain. On his f ...

)

Deaths

* June 25 –

Giovanni Battista Riccioli Giovanni Battista Riccioli (17 April 1598 – 25 June 1671) was an Italian astronomer and a Catholic priest in the Jesuit order. He is known, among other things, for his experiments with pendulums and with falling bodies, for his discussion of ...

, Italian

astronomer An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers observe astronomical objects, such as stars, planets, natural satellite, moons, comets and galaxy, galax ...

(born 1598)

References

{{reflist 17th century in science 1670s in science