[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

Harvard 24' Telescope Slides

The 24' reflector was assembled at the D.S. Kennedy Co. in Cohasset, Massachusetts, and was moved in one assembled piece from Cohasset to the Agassiz site in Harvard, Massachusetts, early on a Sunday morning in November 1952. It was memorable trip, and the photos illustrate the highlights.

(Click on the thumbnails for larger photos and fuller explanations.)

Slide 1: Starting the journey.
Slide 2: Snug fit under a bridge.
Slide 3: Carter E. Raymond's Boat Transportation carrying an unusual boat.
Slide 4: The truck carrying the mount leads the way.
Slide 5: Sunday morning procession.
Slide 6: Negotiating a corner.
Slide 7: A tight spot.
Slide 8: Tilting the reflector to clear the trees.
Slide 9: An even tighter spot!
Slide 10: A successful (and very relieved!) moving team.
Slide 11: Preparing the roof of the control building.
Slide 12: Lifting the mount.
Slide 13: Placing the mount.
Slide 14: The antenna mounted on the control building.
Slide 15: The antenna on the cover of the December 1953 Scientific American.

Modified on Friday, 28-Jan-2005 11:44:42 EST by Ellen Bouton