Editing 1812 in science (section)

==Chemistry==
* [[Humphry Davy]] publishes ''[https://archive.org/details/elementschemica00davygoog/page/n17 <!-- pg=1 --> Elements of Chemical Philosophy]'' in London.
* [[John Davy (chemist)|John Davy]] first describes the synthesis of [[phosgene]].<ref>{{cite journal|title=On a gaseous Compound of carbonic Oxide and Chlorine|first=John|last=Davy|journal=[[Philosophical Transactions of the Royal Society]]|location=London|volume=102|date=6 February 1812|pages=144–151|doi=10.1098/rstl.1812.0008|jstor=107310|doi-access=free}}</ref>
* [[Friedrich Mohs]] introduces his system of classifying minerals and his [[Mohs scale of mineral hardness|scale of mineral hardness]].
* Heinrich Vogel (1778–1867) recognizes that [[glucose]] is a product of hydrolyzing [[lactose]].<ref>Vogel (1812). [http://babel.hathitrust.org/cgi/pt?id=nyp.33433062722768;view=1up;seq=492 "Sur le sucre liquide d'amidon, et sur la transmutation des matières douces en sucre fermentescible"] (On the liquid sugar of starch, and on the transformation of sweet materials into fermentable sugars). ''Annales de chemie et de physique'' series 1 '''82''': 148–164, especially pp. 156–158; [https://books.google.com/books?id=yKuZAAAAIAAJ&pg=PA125 "Ueber die Verwandlung der Stärke und andrer Körper in Zucker"] (On the conversion of starches and other substances into sugar). ''Annalen der Physik'' new series '''42''':123–134, especially pp. 129–131.</ref>