Editing 1906 in science (section)

==Geology==
* April 18 – The [[1906 San Francisco earthquake|San Francisco earthquake]], an estimated 7.9 on the [[Richter magnitude scale|Richter scale]] and centered on the [[San Andreas Fault]], strikes near [[San Francisco, California]]. The [[earthquake]] and fire destroy over 80% of the buildings in the city, and kill as many as 6,000 people. [[Harry Fielding Reid]] devises the [[elastic-rebound theory]] to account for earthquake mechanism.<ref>{{cite book|last=Reid|first=H. F.|title=The Mechanics of the Earthquake, The California Earthquake of April 18, 1906: Report of the State Investigation Commission|volume=2|publisher=Carnegie Institution of Washington|location=Washington, D.C.|year=1910}}</ref>
* [[Richard Dixon Oldham|Richard Oldham]] argues that the Earth has a molten interior.<ref>{{cite journal|last=Bragg|first=William|authorlink=William Henry Bragg|year=1936|title=Tribute to Deceased Fellows of the Royal Society|journal=[[Science (journal)|Science]]|volume=84|issue=2190|pages=539–46|doi=10.1126/science.84.2190.539|pmid=17834950|bibcode=1936Sci....84..539B}}</ref>