Search results
Results from the WOW.Com Content Network
3rd century BC: Archimedes calculates areas and volumes relating to conic sections, such as the area bounded between a parabola and a chord, and various volumes of revolution. [55] 3rd century BC: Archimedes discovers the sum/difference identity for trigonometric functions in the form of the "Theorem of Broken Chords". [45]
18th-century archaeological discoveries (9 C, 8 P) Astronomical objects discovered in the 18th century (42 C) B. ... Pages in category "18th century in science"
The chemical revolution was a period in the 18th century marked by significant advancements in the theory and practice of chemistry. Despite the maturity of most of the sciences during the scientific revolution, by the mid-18th century chemistry had yet to outline a systematic framework or theoretical doctrine.
The Lower Paleolithic period lasted over 3 million years, during which there many human-like species evolved including toward the end of this period, Homo sapiens.The original divergence between humans and chimpanzees occurred 13 (), however interbreeding continued until as recently as 4 Ma, with the first species clearly belonging to the human (and not chimpanzee) lineage being ...
Factors that historians note spurred innovation and discovery include the 17th century Scientific Revolution and the 18th/19th century Industrial Revolution. [1] [2] Another possible influence is the British patent system which had medieval origins and was codified with the Patent Act of 1852. [3]
1021 – Ibn al-Haytham (Alhacen) pioneers the experimental scientific method and experimental physics in his Book of Optics, where he devises the first scientific experiments on optics, including the first use of the camera obscura to prove that light travels in straight lines and the first experimental proof that visual perception is caused ...
Development of the Watt steam engine in the late 18th century was an important element in the Industrial Revolution in Europe. The American Revolutionary War took place in the late 18th century. The 18th century lasted from 1 January 1701 (represented by the Roman numerals MDCCI) to 31 December 1800 (MDCCC).
18th century: of the horse-drawn hoe and scarifier by Jethro Tull [2] [3] [4] 1780s: Selective breeding and artificial selection pioneered by Robert Bakewell (1725–1795). [5] 1842: Superphosphate or chemical fertilizer developed by John Bennet Lawes (1814–1900). [6] 1850s: Steam-driven ploughing engine invented by John Fowler (1826–1864). [7]