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'Arte de convertir le fer forge en acier, which describes how to convert iron into steel.

Exploration

• April 5 - Jacob Roggeveen lands on Easter Island.

Mathematics

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

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 (d. 1789)

Deaths

• May 20 - Sébastien Vaillant, French botanist (b. 1669)