[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

Slide 8: Detecting the Interstellar Hydrogen Line, 1951

[Shklovski 1948 paper]

Shklovski's final sentence in the 1948 paper is, "Soviet radio physicists and astronomers should closely concern themselves with the solution of this intriguing and important problem." [Photo courtesy of Doc Ewen]

My conclusions were: the Dutch will not try detection, the Russians may try detection; I should proceed on the assumption of a negative thesis.


Slide 9
Modified on Monday, 06-Sep-2004 14:05:02 EDT by Ellen Bouton