1722 in science
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The year 1722 in science and technology involved some significant events.
Chemistry
- 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
- April 5 (Easter Sunday) – Jacob Roggeveen lands on Easter Island.
Mathematics
- Abraham de Moivre states de Moivre's formula, connecting complex numbers and trigonometry.
Meteorology
- A continuous series of weather records is begun in Uppsala by Anders Celsius; it will be maintained for at least 300 years.
Physics
- Willem 's Gravesande publishes experimental evidence that the formula for kinetic energy of a body in motion is <math>E_k \propto \begin{matrix} \end{matrix} mv^2</math>.
Technology
- 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.<ref>Template:Cite book</ref>
Births
- 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
- May 20 – Sébastien Vaillant, French botanist (born 1669)