1722 in science

Overview of the events of 1722 in science

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1722 in science

1721

1723

Fields

* Archaeology

Technology

* Sustainable energy research
* Transportation technology

Social sciences

* Psychology
* Governance and policy studies

Paleontology

* Dinosaurs' extinction

Extraterrestrial environment
Terrestrial environment

* Tornado research

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The year 1722 in science and technology involved some significant events.

## Chemistry

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* René Antoine Ferchault de Réaumur publishes his work on metallurgy, L'Art de convertir le fer forge en acier, which describes how to convert iron into steel.

## Exploration

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* April 5 (Easter Sunday) – Jacob Roggeveen lands on Easter Island.

## Mathematics

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* Abraham de Moivre states de Moivre's formula, connecting complex numbers and trigonometry.

## Meteorology

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* A continuous series of weather records is begun in Uppsala by Anders Celsius; it will be maintained for at least 300 years.

## Physics

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* Willem 's Gravesande publishes experimental evidence that the formula for kinetic energy of a body in motion is  E k ∝ m v 2 {\displaystyle E_{k}\propto {\begin{matrix}\end{matrix}}mv^{2}} .

## Technology

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* October – In clockmaking, George Graham demonstrates that his experiments, begun in December 1721, with mercurial compensation of the pendulum result in greater accuracy in timekeeping under conditions of variable temperature.[1]

## Births

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* May 11 – Petrus Camper, Dutch comparative anatomist (died 1789)
* November 19 – Leopold Auenbrugger, Austrian physician (died 1809)
* December 28 - Eliza Lucas, American agronomist (died 1793)
* Thomas Barker, English meteorologist (died 1809)

## Deaths

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* May 20 – Sébastien Vaillant, French botanist (born 1669)

## References

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1. ^ Britten, F. J. (1894). Former Clock & Watchmakers and their Work. London: E. & F.N. Spon. pp. 89–97.

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