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Jack Mendelbaum 1905 - 1991

Jack Mendelbaum of Pittsburgh, Allegheny County, PA was born on April 28, 1905, and died at age 86 years old on August 12, 1991.

Jack Mendelbaum
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Pittsburgh, Allegheny County, PA 15217
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April 28, 1905
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August 12, 1991
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Updated: October 6, 2011
Biography ID: 24500064 What's this
Jack Mendelbaum Jack Mendelbaum (1905 - 1991)
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Jack Mendelbaum's History: 1905 - 1991

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  • 04/28
    1905

    Birthday

    April 28, 1905
    Birthdate
    Unknown
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  • 08/12
    1991

    Death

    August 12, 1991
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  • Did you know?
    Jack Mendelbaum lived 9 years longer than the average family member when died at the age of 86.
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In 1905, in the year that Jack Mendelbaum was born, the German born physicist, Albert Einstein, proposed the Special Theory of Relativity: 1) that observers can never detect uniform motion except relative to other objects and that 2) unlike the velocity of massive objects, the speed of light is a constant and is the same for all observers independent of their constant velocity toward or away from the light source. Not such simple concepts that lead to the equation everyone now knows: E = mc2.
Did you know?
In 1913, when he was just 8 years old, the 17th Amendment, establishing the direct election of U.S. Senators, was adopted. Previously, Senators were elected by state legislatures. As early as 1826, a call to elect senators through popular vote was championed and previous to the 17th amendment, two states had already changed their process. Governors are still able to appoint senators to vacant seats until an election can be held.
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Jack Mendelbaum's Family Tree & Friends

Jack Mendelbaum's Family Tree

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Jack Mendelbaum Apr 28, 1905 - Aug 12, 1991
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Other Biographies

Other Mendelbaum Family Biographies

Mendelbaum, Louise (Apr 7, 1918 - Dec 2, 2006) Mendelbaum, Mathilda (Apr 2, 1909 - Dec 30, 2005) Mendelbaum, George (Mar 7, 1883 - Apr 1973) Mendelbaum, Morris (Nov 13, 1907 - Jan 16, 1989)
Mendelbaum, Jeffery (Jan 15, 1951 - Oct 16, 1981) Mendelbaum, Dina (May 25, 1917 - Feb 1980) Mendelbaum, Yelena (Jan 7, 1913 - May 5, 1999)
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