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nucleus
the central region of an atom made up of protons and neutrons; from the Latin word meaning "little nut"
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  June 10 in chemistry
  1848 - Ferdinand Tiemann born: Reimer-Tiemann reaction; Tiemann rearrangement of amide oximes; synthesis of vanillin (the main component of vanilla extract) and of ionones (odor of violets).
   sources: http://webserver.lemoyne.edu/faculty/giunta/week.html, http://todayinsci.com
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