1722 in science
Encyclopedia
The year 1722 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.

Chemistry

  • René Antoine Ferchault de Réaumur
    René Antoine Ferchault de Réaumur
    René Antoine Ferchault de Réaumur was a French scientist who contributed to many different fields, especially the study of insects.-Life:Réaumur was born in a prominent La Rochelle family and educated in Paris...

     publishes his work on metallurgy
    Metallurgy
    Metallurgy is a domain of materials science that studies the physical and chemical behavior of metallic elements, their intermetallic compounds, and their mixtures, which are called alloys. It is also the technology of metals: the way in which science is applied to their practical use...

    , L'Arte de convertir le fer forge en acier, which describes how to convert iron
    Iron
    Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal in the first transition series. It is the most common element forming the planet Earth as a whole, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust...

     into steel
    Steel
    Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

    .

Technology

  • October - In clockmaking, George Graham
    George Graham (clockmaker)
    George Graham was an English clockmaker, inventor, and geophysicist, and a Fellow of the Royal Society.He was born to George Graham in Kirklinton, Cumberland. A Friend like his mentor Thomas Tompion, Graham left Cumberland in 1688 for London to work with Tompion...

     demonstrates that his experiments, begun in December 1721, with mercurial
    Mercury (element)
    Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver or hydrargyrum...

     compensation of the pendulum
    Pendulum
    A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced from its resting equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position...

     result in greater accuracy in timekeeping under conditions of variable temperature.

Births

  • May 11 - Petrus Camper
    Petrus Camper
    Peter, Pieter, or usually Petrus Camper was a Dutch physician, anatomist, physiologist, midwife, zoologist, anthropologist, paleontologist and a naturalist. He studied the orangutan, the rhinoceros, the skull of a whale...

    , Dutch
    Netherlands
    The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

     comparative anatomist
    Comparative anatomy
    Comparative anatomy is the study of similarities and differences in the anatomy of organisms. It is closely related to evolutionary biology and phylogeny .-Description:...

     (d. 1789
    1789 in science
    The year 1789 in science and technology involved some significant events.-Anatomy:* Antonio Scarpa publishes Anatomicæ disquisitiones de auditu et olfactu, a classic treatise on the hearing and olfactory organs.-Astronomy:...

    )

Deaths

  • May 20 - Sébastien Vaillant
    Sébastien Vaillant
    Sébastien Vaillant was a French botanist.Vaillant was born at Vigny, Val d'Oise. He studied medicine at Pontoise, and then moved to Paris to practice as a surgeon, where he studied botany at the Jardin des Plantes under Joseph Pitton de Tournefort.Vaillant was appointed to the staff of the Jardin...

    , French
    French people
    The French are a nation that share a common French culture and speak the French language as a mother tongue. Historically, the French population are descended from peoples of Celtic, Latin and Germanic origin, and are today a mixture of several ethnic groups...

     botanist (b. 1669
    1669 in science
    The year 1669 in science and technology involved some significant events.-Astronomy:* Montanari detects the variability of the eclipsing binary Algol.-Biology:...

    )
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