Editing 1848 in science (section)

==Physics==
* [[Lord Kelvin]] establishes concept of [[absolute zero]], the temperature at which all molecular motion ceases.<ref>{{cite web|last=Weisstein|first=Eric W.|title=Kelvin, Lord William Thomson (1824–1907)|work=Eric Weisstein's World of Scientific Biography|publisher=Wolfram Research Products|year=1996|url=http://scienceworld.wolfram.com/biography/Kelvin.html|accessdate=2007-03-12}}</ref>
* [[Nicholas Callan]] of [[Maynooth College]] invents an improved form of [[Battery (electric)|battery]].<ref>''Year-book of Facts''. 1848.</ref>
* [[Hippolyte Fizeau]] and [[John Scott Russell]] present studies of the [[Doppler effect]] in [[electromagnetic waves|electromagnetic]] and [[sound wave]]s respectively.<ref>Fizeau, Hippolyte. "Acoustique et optique". Unpublished lecture to Société Philomathique (Paris), 29 December 1848; {{cite journal|last=Scott Russell|first=John|url=http://www.ma.hw.ac.uk/~chris/doppler.html|title=On certain effects produced on sound by the rapid motion of the observer|journal=Report of the Eighteen Meeting of the British Association for the Advancement of Science|year=1848|volume=18|issue=7|pages=37–38|publisher=John Murray|location=London|accessdate=2013-07-29}}</ref>