CHARLES TOWNES

Charles H. Townes, Columbia University professor and Nobel Laureate, explains his invention the maser during a news conference in New York City, Jan. 25, 1955. The maser, microwave amplification by stimulated emission of radiation, uses directly the energy radiated by molecules of ammonia gas. (AP Photo)

Location

NEW YORK, New York United States

Creation Date

01/25/1955 ::

Submit Date

12/03/2002 13:48:45

Credit

Associated Press AP

Slug

Object Name

CHARLES TOWNES

Photographer

Staff

Caption Writer

XNBG

Special Instructions

Negative Number

044042

Image Number

6540175 (0004V)

Trans reference Number

APHS113