thumb | right | The Staffelwalze, or Stepped Reckoner, a digital calculating machine invented by Gottfried Wilhelm Leibniz around 1673 and built around 1700, on display in the Technische Sammlungen museum in Dresden, Germany.
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The year 1673 in science and technology involved some significant events.
Mathematics
- John Kersey begins publication of The Elements of that Mathematical Art Commonly Called Algebra.
- Gottfried Wilhelm Leibniz rediscovers the arctangent series and obtains the Leibniz formula for as the special case.
- Samuel Morland publishes A Perpetual Almanack and Several Useful Tables.
Microbiology
- Antonie van Leeuwenhoek's observations with the microscope are first published in Philosophical Transactions of the Royal Society.
Physics
- Christiaan Huygens publishes his mathematical analysis of the pendulum, Horologium Oscillatorium sive de motu pendulorum.
Births
- August 10 – Johann Konrad Dippel, German theologian, alchemist and physician (died 1734)
- August 11 – Richard Mead, English physician (died 1754)
Deaths
- May 6 – Werner Rolfinck, German scientist (born 1599)
- August 17 – Regnier de Graaf, Dutch physician and anatomist who discovered the ovarian follicles (born 1641)
- December 15 – Margaret Cavendish, Duchess of Newcastle-upon-Tyne, English natural philosopher (born 1623)