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John Blok 1900 - 1975

John Blok of Grand Rapids, Kent County, Michigan was born on September 25, 1900, and died at age 74 years old in July 1975.

John Blok
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Grand Rapids, Kent County, Michigan 49505
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September 25, 1900
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July 1975
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Male
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Updated: November 3, 2011
Biography ID: 51514782 What's this
John Blok John Blok (1900 - 1975)
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John Blok's History: 1900 - 1975

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  • 09/25
    1900

    Birthday

    September 25, 1900
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  • 07/dd
    1975

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    July 1975
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    John Blok lived 2 years longer than the average family member when died at the age of 74.
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In 1900, in the year that John Blok was born, the German physicist Max Planck formulated an energy theory, postulating the existence of "quanta," which lays the groundwork for the quantum theory of modern physics. In December, he introduced a paper on the Planck postulate which stated that E=hv - the energy of a photon is proportional to its frequency times a constant. Planck won a Nobel Prize in 1918 for his work in theoretical Physics.
Did you know?
In 1924, John was 24 years old when J. Edgar Hoover, at the age of 29, was appointed the sixth director of the Bureau of Investigation by Calvin Coolidge (which later became the Federal Bureau of Investigation). The Bureau had approximately 650 employees, including 441 Special Agents. A former employee of the Justice Department, Hoover accepted his new position on the proviso that the bureau was to be completely divorced from politics and that the director report only to the attorney general.
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John Blok's Family Tree & Friends

John Blok's Family Tree

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John Blok Sep 25, 1900 - Jul 1975
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Other Biographies

Other John Blok Biographies

Blok, John (Nov 1, 1891 - Nov 1974) Blok, John (Oct 19, 1924 - Oct 1968) Blok, John (Nov 4, 1909 - Jan 19, 2004) Blok, John (Dec 11, 1903 - Aug 1979)
Blok, John (Feb 26, 1892 - Jul 1972) Blok, John (Nov 27, 1907 - May 1987) Blok, John (Aug 28, 1942 - Nov 22, 2004)

Other Blok Family Biographies

Blok, Jacobus (Mar 18, 1881 - Jul 1964) Blok, Viktor (Sep 8, 1945 - May 26, 2004) Blok, Albert (Jun 12, 1938 - Oct 31, 2007) Blok, Leonard (Dec 20, 1904 - Aug 1986) Blok, Ann (Aug 6, 1899 - May 1987) Vanlier-Blok, Wiesje (Jan 6, 1928 - Jul 5, 2006) Blok, Frank (Oct 24, 1937 - Apr 9, 2010) Blok, Jan (Nov 21, 1913 - Sep 1989) Blok, Karl (Jun 23, 1919 - Jul 1987) Blok, William (Dec 12, 1894 - Oct 1, 1965)
Blok, Josephine (Jul 22, 1919 - Jul 18, 2001) Blok, Matlya (May 10, 1905 - Nov 15, 1991) Blok, Anna (Jul 2, 1930 - Apr 17, 1999) Blok, Frank (Nov 11, 1895 - Jul 1976) Blok, Freda (Mar 20, 1897 - Oct 11, 1993) Blok, Lena (Feb 12, 1891 - Dec 1976) Blok, Stanley (Apr 23, 1925 - Apr 5, 2005) Blok, Violet (Dec 16, 1911 - Oct 1979) Blok, Larisa (Apr 28, 1941 - Jul 11, 1996) Blok, George (Apr 2, 1911 - Nov 1982)
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