Editing 1822 in science (section)

==Mathematics==
* July 3 – [[Charles Babbage]] publishes a proposal for a "[[difference engine]]", a mechanical forerunner of the modern computer for calculating [[logarithm]]s and [[Trigonometry|trigonometric]] functions. Construction of an operational version will proceed under British Government sponsorship 1823–32 but it will never be completed.<ref>{{cite book|first=Anthony|last=Hyman|author-link=R. Anthony Hyman|title=[[Charles Babbage: Pioneer of the Computer]]|publisher=[[Oxford University Press]]|year=1982|isbn=0-19-858170-X|page=51ff}}</ref>
* [[Karl Feuerbach]] describes the [[nine-point circle]] of a [[triangle]].<ref>{{cite book|first=Tony|last=Crilly|title=50 Mathematical Ideas You Really Need to Know|location=London|publisher=Quercus|year=2007|isbn=978-1-84724-008-8|page=85}}</ref>
* [[William Farish (chemist)|William Farish]] of the [[University of Cambridge]] publishes a systematization of the rules for [[Isometric projection|isometric drawing]].<ref>{{cite journal|first=William|last=Farish|title=On Isometrical Perspective|journal=Transactions of the Cambridge Philosophical Society|volume=1|year=1822|pages=1–19|url=http://dbooks.bodleian.ox.ac.uk/books/PDFs/N12657793.pdf|format=PDF|accessdate=2012-05-29}}</ref><ref>{{cite book|first=Barclay G.|last=Jones|year=1986|title=Protecting historic architecture and museum collections from natural disasters|location=Ann Arbor|publisher=University of Michigan|isbn=0-409-90035-4|page=243}}</ref><ref>{{cite book|first=Charles Edmund|last=Moorhouse|year=1974|title=Visual messages: graphic communication for senior students}}</ref>