April 9, 1980 -
April 9, 1980 -
April 9, 1980 -
April 10, 1980 -
April 10, 1980 -
April 10, 1980 -
April 10, 1980 - Guests Dr. Thomas Bligh of the Mechanical Engineering Department at MIT and Don Metz, an architect in Lyme, New Hampshire and founder of a design and consulting firm specializing in earth-sheltered and passive solar structures. They discuss earth-sheltered dwellings and answer listener questions.
April 11, 1980 -
April 11, 1980 -
April 11, 1980 -