1668 in science

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The year 1668 in science and technology involved some significant events.

Astronomy

• Isaac Newton invents the reflecting telescope.

Biology

• Francesco Redi publishes Esperienze Intorno alla Generazione degl'Insetti ("Experiments on the Generation of Insects"), disproving theories of the spontaneous generation of maggots in putrefying matter.

Mathematics

• Nicholas Mercator and William Brouncker discover an infinite series for the logarithm while attempting to calculate the area under a hyperbolic segment.

Medicine

• François Mauriceau publishes Traité des Maladies des Femmes Grosses et Accouchées in Paris, a key text in scientific obstetrics.

Births

• December 31 - Hermann Boerhaave, Dutch physician and chemist who makes Leiden a European centre of medical knowledge (d. 1738)