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1955 in science
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==Chemistry== * January 11 β [[Lloyd Conover]] is granted a [[patent]] for [[tetracycline]] in the United States.<ref>Applied for in 1953. {{cite book|url=https://books.google.com/books?id=i4_FZHmzjzwC&q=lloyd%20conover%20patented%201955&pg=PA227|title=Antimicrobial Drugs: Chronicle of a Twentieth Century Medical Triumph|first=David|last=Greenwood|date=21 February 2008|publisher=Oxford University Press|isbn=9780199534845|via=Google Books}} {{cite book|url=https://books.google.com/books?id=9HANBQAAQBAJ&q=lloyd%20conover&pg=PT42|title=God Is Here to Stay: Science, Evolution, and Belief in God|first1=Thomas R.|last1=McFaul|first2=Al|last2=Brunsting|year=2014|publisher=Wipf and Stock Publishers|isbn=9781630871802|via=Google Books}}</ref> * February 19 β [[Mendelevium]] ([[atomic number]] 101) is first [[discovery of the chemical elements|synthesized]] by [[Albert Ghiorso]], [[Glenn T. Seaborg]], Gregory R. Choppin, Bernard G. Harvey, and Stanley G. Thompson (team leader) at the [[University of California, Berkeley]].<ref>{{cite journal|doi= 10.1103/PhysRev.98.1518|title=New Element Mendelevium, Atomic Number 101|year=1955|last1=Ghiorso|first1=A.|last2=Harvey|first2=B.|last3=Choppin|first3=G.|last4=Thompson|first4=S.|last5=Seaborg|first5=G.|journal=[[Physical Review]]|volume=98|issue=5|pages=1518β19|bibcode = 1955PhRv...98.1518G |url=https://digital.library.unt.edu/ark:/67531/metadc886797/|doi-access=free}}</ref> * August 20 β [[Dorothy Hodgkin]] and colleagues publish the structure of [[Vitamin B12|vitamin B<sub>12</sub>]].<ref>{{cite journal|author1=Hodgkin, Dorothy Crowfoot|author2=Pickworth, Jenny|author3=Robertson, John H.|author4=Trueblood, Kenneth N.|author5=Prosen, Richard J.|author6=White, John G.|title=Structure of Vitamin B<sub>12</sub>: The Crystal Structure of the Hexacarboxylic Acid derived from B<sub>12</sub> and the Molecular Structure of the Vitamin|journal=Nature|volume=176|issue=4477|year=1955|pages=325β8|url=https://www.nature.com/articles/176325a0|doi=10.1038/176325a0|pmid=13253565|bibcode = 1955Natur.176..325H|s2cid=4220926|url-access=subscription}}</ref> * [[Diquat]]'s properties as a contact [[herbicide]] are recognized at the [[Imperial Chemical Industries]] laboratories at [[Jealott's Hill]] in England.<ref>{{cite book|title=Jealott's Hill: Fifty years of Agricultural Research 1928-1978|editor-first=F. C.|editor-last=Peacock|last=Calderbank|first=A.|display-authors=etal|chapter=Chapter 9: Bipyridylium herbicides|pages=67β86|publisher=Imperial Chemical Industries|year=1978|isbn=0901747017|url=https://archive.org/details/jealottshillfift0000peac/page/1}}</ref> * Renewable [[ion-exchange resin]] cartridges for [[water softening]] and [[water purification|purification]] are used in a device by Walter F. Lorch.<ref name=HMGST55/>
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