1722 in science

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 $$E_k \propto \begin{matrix} \end{matrix} mv^2$$.

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.

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)