[Doc Ewen looks into the horn antenna, 1950]
Image courtesy of Doc Ewen


Harvard Cyclotron: 1948-1951

Detection of HI Line: 1951

Harvard 24ft and 60ft and NRAO founding: 1952-1956

1950s and 1960s: Two Roads that Crossed

Microwave & Millimeter Wave Applications in the 1970s and 1980s

Mm Wave Radiometry in the 1990s

May 2001 visit to NRAO Green Bank



[Doc Ewen and horn antenna, 2001]
Image courtesy of Doc Ewen

Doc Ewen: The Horn, HI, and Other Events in US Radio Astronomy

by Doc Ewen, © 2003

Slide 11: Harvard 60ft Telescope Slides

[Installation of reflector]

Left: Installation of the reflector ring section; the ring section provides the primary mechanical rigidity for the reflector. Right: Fourth paraboloid tip section being placed on the reflector ring. [Photos courtesy of Doc Ewen]

Slide 12
Modified on Monday, 13-Sep-2004 11:34:59 EDT by Ellen Bouton