"623","12","archive","205",,,"disk0/00/00/06/23","2009-10-01 04:20:34","2019-10-03 22:52:33","2009-10-01 04:20:34","journal_issue",,,"show",,,,"","","","","","","","","","","0",,,,,,,"","","","","","",,,,,"","Engineering and Science, Volume 56:4, Summer 1993","pub","journal_issue","","public",,,,,,,"1993","published",,"Engineering and Science","56","4","California Institute of Technology","Pasadena, CA",,,,,,,,"CaltechES:56.4.0",,,,,"FALSE",,"0013-7812",,"Dietrich","Jane S.","","","Dietrich-J-S","https://resolver.caltech.edu/CaltechES:56.4.0","","","",,"",,,,,,"",,,,,,,"",,,,,"",,,,,"","",,,,,"","",,"You are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format.",,,,,"","",,,"","","","","","","","CaltechES","<h2>Table of Contents</h2>
<p><b><a href=""02/Waters.pdf"">The Chlorine Threat to Stratospheric Ozone</a></b><br />
  <em>by Joe W. Waters</em><br />
  From JPL's satellite-borne microwave instrument, launched in 1991, has come dramatic additional
  evidence implicating chlorine chemistry in Antarctica's ozone hole&#0151;and the suggestion that
  similar processes of ozone destruction are occurring in the north.</p>
<p><b><a href=""02/Kimble.pdf"">New Light on the Nature of Darkness</a></b><br />
  <em>by H. Jeff Kimble</em><br />
  In the bizarre world of quantum optics, it's possible to make light that is darker than ordinary
  darkness, and othet even stranger things.</p>
<p><b><a href=""02/Sternberg.pdf"">Roundworm Cells and Cancer Genes</a></b><br />
  <em>by Paul W. Sternberg</em><br />
  By studying a creature the size of this comma, biologists may be closing in on the secrets of the
  human body's cancer-causing genes.</p>
<p><b><a href=""02/Smith.pdf"">The Bad News Bearings</a></b><br />
  <em>by Douglas L. Smith</em><br />
  How do you get to something hidden behind 14&#0189; tons of glass on one side and 20 tons of steel
  on the other, without separating the two? Such was the Palomar Observatory staff's dilemma
  when bearings deep within the Hale Telescope's 200-inch mirror began to stick.</p>
<p><em>Departments</em></p>
<p><b><a href=""02/Letters.pdf"">Letters</a></b></p>
<p><b><a href=""02/Random.pdf"">Random Walk</a></b></p>
<p><b><a href=""02/Obituaries.pdf"">Obituaries</a></b></p>",,,,,"",,,,,"","",,,,,,,,,