Editing 1925 in science (section)

==Chemistry==
* May – [[Rhenium]] is discovered by [[Walter Noddack]] and [[Ida Tacke]] in [[Berlin]], the last stable, non-radioactive naturally occurring [[Chemical element|element]] to be found.<ref>{{cite book|title=Nature's Building Blocks: An A-Z Guide to the Elements|last=Emsley|first=John|publisher=Oxford University Press|year=2001|isbn=0-19-850340-7|chapter=Rhenium|pages=[https://archive.org/details/naturesbuildingb0000emsl/page/358 358–360]|url=https://archive.org/details/naturesbuildingb0000emsl/page/358}}</ref>
* The [[Fischer–Tropsch process]] for production of [[hydrocarbon]]s is first developed by [[Franz Joseph Emil Fischer|Franz Fischer]] and [[Hans Tropsch]] at the Kaiser-Wilhelm-Institut für Kohlenforschung in Mülheim an der Ruhr, Germany.