The year 1534 in science and technology included a number of events, some of which are listed here.
Astronomy Oronce Finé publishes 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 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 (died 1585) November 6 – Joachim Camerarius the Younger, German physician and botanist (died 1598) undated − Volcher Coiter, Dutch anatomist (died 1576)
Deaths December 13 − Paul of Middelburg, Flemish scientist and bishop (born 1446) December 23 – Otto Brunfels, German botanist (born c. 1488)
References