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announcements [2019/04/04 18:57] – janettateannouncements [2020/03/06 09:12] (current) – external edit 127.0.0.1
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 ====== Old Announcements ====== ====== Old Announcements ======
 Current announcements are on the [[start|syllabus]] page. Current announcements are on the [[start|syllabus]] page.
 +
 +=== 5/20/2019 ===
 +Today is [[http://www.worldmetrologyday.org/|World Metrology Day]], and we have a new kilogram standard!  Read about it at the [[https://www.nist.gov/si-redefinition|National Institute of Standards and Technology (NIST)]] site. Here is a [[https://www.vox.com/science-and-health/2019/5/17/18627757/kilogram-redefined-world-metrology-day-explained|Vox article]] that does a reasonable job of discussing it for the layperson (but note the error in the discussion of the units of Planck's constant!).
 +
 +=== 5/20/2019 ===
 +Some solid state physics in the news - ice-XVIII.
 +[[https://physicstoday.scitation.org/do/10.1063/PT.6.1.20190517a/full/|https://physicstoday.scitation.org/do/10.1063/PT.6.1.20190517a/full/]]
 +
 +=== 5/12/2019 ===
 +The first part of hwk 5 has been posted.
 +
 +=== 5/6/2019 ===
 +The final exam will be held at the advertised time of Thursday June 13 in Weniger 304. Please bring a prepared sheet of notes, one side of one 8.5 x 11" paper.
 +
 +=== 5/2/2019 ===
 +Midterm from 3-4 Friday May 3 in Weniger 304. Please bring a prepared sheet of notes, one side of one 8.5 x 11" paper.
 +
 +=== 4/24/2019 ===
 +I uploaded a new version of the density of states notes to try to make clear the distinction between D(k) and D(E). 
 +
 +=== 4/17/2019 ===
 +[[https://www.cambridge.org/core/journals/mrs-bulletin/news/rare-earth-topological-insulator-reveals-its-thermoelectric-properties|Here]] is some fun news about topological insulators with good thermoelectric properties. 
 +
 +=== 4/16/2019 ===
 +There is a new worksheet on the 4/15 day under "assignments" - you don't need t oturn it in, but it summarizes what we did in class and you should be able to construct it for the molecular orbitals of chain of any number of atoms.
 +
 +=== 4/15/2019 ===
 +There will be a make-up class on Tuesday 4/16 at 8am for those of you who will miss Mon 4/15 for the lunch with Dr. Wineland.
  
 === 4/4/2019 === === 4/4/2019 ===

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