1705 in science

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The year 1705 in science and technology involved some significant events.

Astronomy

• Edmond Halley, in his Synopsis Astronomia Cometicae, states that comets seen in 1456, 1531, 1607, and 1682 were actually a single comet and correctly predicts that it will return in 1758.

Life sciences

• Dutch lepidopterist Maria Merian publishes Metamorphosis insectorum Surinamensium.
• French anatomist Raymond Vieussens publishes Novum vasorum corporis humani systema, considered an early classic work on cardiology.
• French surgeon Jean Louis Petit publishes L'Art de guerir les maladies des os, the first significant work on bone disease.

Other events

• April 16 – Isaac Newton is knighted by Anne, Queen of Great Britain.

Births

• February 22 – Peter Artedi, Swedish naturalist (died 1735)
• April 11 – William Cookworthy, English chemist (died 1780)
• June 21 – David Hartley, English physician and psychologist (died 1757)
• undated – Charles Labelye, Swiss engineer (died c. 1781)
• undated – Thomas Boulsover, English inventor (died 1788)
• undated – Faustina Pignatelli, Italian mathematician (died 1785)

Deaths

• January 17 – John Ray, English naturalist (born 1627)
• August 16 – Jakob Bernoulli, Swiss mathematician (born 1654)
• October 11 – Guillaume Amontons, French scientific instrument inventor and physicist (born 1663)
• November 10 – Justine Siegemund, German midwife (born 1636)