Readers Talk Back.

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    • Abstract:
      Presents feedback from several readers of the journal 'Popular Science,' related to science research, published in the April, 1984 issue of the journal. Effectiveness of slant metal boxes in collecting solar heat; Reason behind reversal of astronaut picture in 'workhorse shuttle'; Error regarding mentioning a copper-zinc alloys as bronze in an article published in the November, 1983 issue of the journal.