1534 in science

Astronomy

• Oronce Finé publishes Quadrans astrolabicus in Paris.

  Exploration

• April 20 – September 5 – Expedition of Jacques Cartier to the Gulf of Saint Lawrence.
• * May 10 – Cartier reaches Newfoundland.
• * June 9 – Cartier is the first European to discover the Saint Lawrence River.

  Mathematics

• Petrus Apianus publishes Primi Mobilis Instrumentum in Nuremberg, on trigonometry and containing tables of sines.

  Medicine

• Girolamo Fracastoro publishes Di Vini Temperatura.
• Stefan Falimierz publishes On Herbs and Their Potency .

  Births

• September 28 − Samuel Eisenmenger, German physician and mathematician
• November 6 – Joachim Camerarius the Younger, German physician and botanist
• undated − Volcher Coiter, Dutch anatomist

  Deaths

• December 13 − Paul of Middelburg, Flemish scientist and bishop
• December 23 – Otto Brunfels, German botanist