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• Identified! [Dr. Charles G. Abbot (right), Secretary of the Smithsonian Institute, with his solar heat engine that was shown at the Third World Power Conference on September 8, 1936, with Dr. William S. Durand, chairman of the conference] (LOC)

  • Uploaded by: The Library of Congress
  • License: No known copyright restrictions
  • 3 comments
  • 5 favorites
  • 8,399 views
  • Date taken: 1936
  • Date uploaded: 2020-10-30
  • Tags: libraryofcongress, dc:identifier=httphdllocgovlocpnphec33725
  • Visibility: public