-

    4 1903, , . - . , . . 1889, 13 .
    (Iva Lucena Purdy), . 9- . , , .
 
    , . , . , . 1921 . , -, - . . - 1925 , . , - , , , .
    1926 . , . , - . III. 1 , , , . " " . "" - . 1930, , - - .
    1930 . - . -.
    , , - . "" -, " ".
   1936 . . , , "", . , - .
    1939 1941 - . . ABC, --, -. , , 7 1941, . , ., ABC ...
    1939 , - ( ). - . , - .
    1948, , , -- . , , ... .
    , 15 1995 .

:

  1945 -       - .
  1947 -       
  1947 -  ,    .
  1947 -    ""
  1970 -  "  " I 
  1974 -       .
  1974 -       
  1974 -        
  1981 -       .
  1985 -    .
  1985 -    , EDUCOM
  1985 - Holley Medal, American Society of Mechanical Engineers
  1986 - Coors American Ingenuity Award