• Jan Aleksander Rajchman (10 August 1911 – 1 April 1989) was a Polish-American electrical engineer and computer pioneer. Jan Aleksander was son of Ludwik...
    3 KB (279 words) - 00:03, 2 May 2024
  • Aleksander Rajchman (1890-1940), Polish mathematician Jan A. Rajchman (1911-1989), Polish-American electrical engineer and computer pioneer John Rajchman (born...
    900 bytes (129 words) - 15:16, 20 September 2023
  • Thumbnail for Ludwik Rajchman
    a Polish sociologist and he is the first cousin of Ludwik Hirszfeld, a Polish microbiologist. Ludwik Rajchman is the father of Jan A. Rajchman, a Polish...
    10 KB (1,273 words) - 02:15, 7 July 2024
  • Thumbnail for Magnetic-core memory
    1 April 2018. Jan A. Rajchman, Magnetic System, U.S. patent 2,792,563, granted 14 May 1957. Hittinger, William (1992). "Jan A. Rajchman". Memorial Tributes...
    41 KB (5,488 words) - 13:24, 28 July 2024
  • Thumbnail for Everhart–Thornley detector
    had improved a design for a secondary electron detection by Vladimir Zworykin and Jan A. Rajchman by changing the electron multiplier to a photomultiplier...
    3 KB (403 words) - 08:56, 11 February 2024
  • Thumbnail for Aleksander Rajchman
    Aleksander Michał Rajchman (13 November 1890 – July or August 1940) was a mathematician of the Warsaw School of Mathematics of the Interwar period. He...
    8 KB (825 words) - 19:18, 26 February 2024
  • Thumbnail for Selectron tube
    developed by Jan A. Rajchman and his group at the Radio Corporation of America (RCA) under the direction of Vladimir K. Zworykin. It was a vacuum tube...
    14 KB (1,980 words) - 04:56, 31 July 2024
  • Rajchman (born June 25, 1946) is an American philosopher working in the areas of art history, architecture, and continental philosophy. Son of Jan A....
    2 KB (201 words) - 04:36, 3 August 2024
  • Thumbnail for Computer memory
    Viehe and An Wang in the late 1940s, and improved by Jay Forrester and Jan A. Rajchman in the early 1950s, before being commercialized with the Whirlwind...
    29 KB (3,274 words) - 10:19, 29 July 2024
  • Thumbnail for Howard H. Aiken
    Hathaway Aiken (March 8, 1900 – March 14, 1973) was an American physicist and a pioneer in computing. He was the original conceptual designer behind IBM's...
    10 KB (970 words) - 18:48, 24 June 2024