The year 1727 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

* Maharaja

Jai Singh II Sawai Jai Singh II (3 November 1688 – 21 September 1743), was the 30th Kachwaha Rajput ruler of the Kingdom of Amber, who later founded the fortified city of Jaipur and made it his capital. He became the ruler of Amber at the age of 11, after ...

begins construction of the Jantar Mantar

observatory An observatory is a location used for observing terrestrial, marine, or celestial events. Astronomy, climatology/meteorology, geophysics, oceanography and volcanology are examples of disciplines for which observatories have been constructed. Th ...

Jaipur Jaipur (; , ) is the List of state and union territory capitals in India, capital and the List of cities and towns in Rajasthan, largest city of the north-western States and union territories of India, Indian state of Rajasthan. , the city had ...

Biology

* Rev.

Stephen Hales Stephen Hales (17 September 16774 January 1761) was an English clergyman who made major contributions to a range of scientific fields including botany, pneumatic chemistry and physiology. He was the first person to measure blood pressure. He al ...

publishes ''Vegetable Staticks'', containing an account of key experiments in

plant physiology Plant physiology is a subdiscipline of botany concerned with the functioning, or physiology, of plants. Plant physiologists study fundamental processes of plants, such as photosynthesis, respiration, plant nutrition, plant hormone functions, tr ...

; and makes the first measurement of

blood pressure Blood pressure (BP) is the pressure of Circulatory system, circulating blood against the walls of blood vessels. Most of this pressure results from the heart pumping blood through the circulatory system. When used without qualification, the term ...

. Forssmann, Werner. Nobel Lecture in Physiology or Medicine, 1956.

Mathematics

* This year's

French Academy of Sciences The French Academy of Sciences (, ) is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French Scientific method, scientific research. It was at the forefron ...

prize is based on a problem on the masting of ships: to calculate the number of masts to use and where in the ship to locate them.

Pierre Bouguer Pierre Bouguer () (16 February 1698, Le Croisic – 15 August 1758, Paris) was a French mathematician, geophysicist, geodesist, and astronomer. He is also known as "the father of naval architecture". Career Bouguer's father, Jean Bouguer, ...

gains the award for his paper ''On the masting of ships''; and two other prizes, one for his dissertation ''On the best method of observing the altitude of stars at sea'' and the other for his paper ''On the best method of observing the variation of the compass at sea''. The 19-year-old

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

enters for the prize with an essay written in 1726 and published in 1728.

Optics

Eyeglasses Glasses, also known as eyeglasses (American English), spectacles (Commonwealth English), or colloquially as specs, are Visual perception, vision eyewear with clear or tinted lens (optics), lenses mounted in a frame that holds them in front ...

, with side pieces that rest on the ears, are invented by Englishman

Edward Scarlett Edward Scarlett (1688 – 1743 in London) was an English optician and instrument maker, who first invented an eyeglass frame with earhooks in 1727. This frame is held by the nose and ears, at times the glasses were called in contrast to the nasal ...

Pharmacology

* Elizabeth Gooking Greenleaf opens an

apothecary ''Apothecary'' () is an Early Modern English, archaic English term for a medicine, medical professional who formulates and dispenses ''materia medica'' (medicine) to physicians, surgeons and patients. The modern terms ''pharmacist'' and, in Brit ...

shop in

Boston Boston is the capital and most populous city in the Commonwealth (U.S. state), Commonwealth of Massachusetts in the United States. The city serves as the cultural and Financial centre, financial center of New England, a region of the Northeas ...

, Massachusetts, the first woman to so practice in America.

Other events

* The

kilt A kilt ( ) is a garment resembling a wrap-around knee-length skirt, made of twill-woven worsted wool with heavy pleats at the sides and back and traditionally a tartan pattern. Originating in the Scottish Highland dress for men, it is first r ...

is invented by Thomas Rawlinson, the English owner of an ironworks, who designs it as a cheap uniform for better maneuverability around machinery. Ian MacDonnel of

Glengarry The Glengarry bonnet is a traditional Scots cap made of thick-milled woollen material, decorated with a toorie on top, frequently a rosette cockade on the left side, and ribbons hanging behind. It is normally worn as part of Scottish military ...

adopts the garment along with his clansmen, and the kilt is worn throughout the Highlands by 1745.

Births

* March 19 –

Ferdinand Berthoud Ferdinand Berthoud (; born 18 March 1727, in Couvet, Plancemont-sur-Couvet, Principality of Neuchâtel; died 20 June 1807, in Groslay, Val d'Oise), was a scientist and watchmaker. He became master watchmaker in Paris in 1753. Berthoud, who held ...

, Swiss clockmaker and maker of scientific instruments (died

1807 Events January–March *January 7 – The United Kingdom of Great Britain and Ireland issues an Order in Council prohibiting British ships from trading with France or its allies. *January 20 – The Sierra Leone Company, faced with b ...

) * April 7 –

Michel Adanson Michel Adanson (7 April 17273 August 1806) was an 18th-century French botanist and naturalist who traveled to Senegal to study flora and fauna. He proposed a "natural system" of taxonomy distinct from the binomial system forwarded by Linnaeus. ...

, French botanist (died

1806 Events January–March *January 1 ** The French Republican Calendar is abolished. ** The Kingdom of Bavaria is established by Napoleon. *January 5 – The body of British naval leader Horatio Nelson, 1st Viscount Nelson, lies in state ...

)

Deaths

* March 31 –

Isaac Newton Sir Isaac Newton () was an English polymath active as a mathematician, physicist, astronomer, alchemist, theologian, and author. Newton was a key figure in the Scientific Revolution and the Age of Enlightenment, Enlightenment that followed ...

, English

physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate cau ...

and

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 ...

(born

1643 Events January–March * January 21 – Abel Tasman sights the island of Tonga. * February 6 **(17 Dhu al-Qadah 1052 AH) In India, the first ceremony at the nearly-complete Taj Mahal in Agra, the Mughal Emperor Shah Jahan ob ...

) * March 22 – Johann Leonhard Rost, German

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

1688 Events January–March * January 2 – Fleeing from the Spanish Navy, French pirate Raveneau de Lussan and his 70 men arrive on the west coast of Nicaragua, sink their boats, and make a difficult 10 day march to the city of Ocota ...

)

References

{{reflist 18th century in science 1720s in science