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

Introduction

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

Bibliography

Permissions


[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


Millimeter Wave Radiometry in the 1990s: ROSCAM slides 5a & 5b

Bridges crossing the Connecticut River at Northampton, 1400 feet at 60 mph

[Bridge at Northampton]

Bridge at Northampton. Credit: Photo courtesy of Doc Ewen.

[Bridge at Northampton]

Bridge at Northampton. Credit: Photo courtesy of Doc Ewen.

ROSCAM slide 6
Modified on Sunday, 12-Jun-2005 09:01:00 EDT by Ellen Bouton