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  1. #1
    Raider of the lost time
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    radioactive women

    In 1935, Einstein wrote a memoriam for the late Madame Marie Curie (1867-1934). She can be considered the first of the two radioactive women who were both awarded the Nobel Prize for Physics. The second was Maria-Goeppert-Mayer (1906-1972). Marie Curie devoted her life together with husband Pierre for research on the radioactive phenomena of matter discovered by Henri Becquerel in 1896. Within the lifespan of their researches, they discovered more than 40 radioactive elements and have removed almost all the mysteries surrounding radioactivity. In honor of her works, synthetic element with atomic number 96 was named curium. Incidentally, curium can be made from plutonium 239 by bombardment with helium ions accelerated in the cyclotron: ²³⁹Pu₉₄+He₂→Cm₉₆+n. The nuclide Cmis known as α-particle emitter with ½life about 5 months. Marie and Pierre Curie together with Henri Becquerel were awarded the 1903 Nobel Prize for Physics. Because of the danger of radioactive exposure, Madame Curie contracted a rare form of blood disease and suffered a painful death at the end of her life.

    In 1963, Maria Goeppert-Mayer was also awarded the Nobel Prize for Physics recognizing her works with others concerning nuclear structures called the nuclear shell model. Although the validity of this model was quite questionable among physicists of the time, surprisingly, it was used successfully to explain not only the main features of the magic number phenomena, but also more detailed properties such as spins, magnetic moments, and level spectra of many nuclei. Incidentally, the magic numbers are a sequence of numbers which indicate nuclei stability when either the number of protons or the number of neutrons is equal to one of the following numbers: 2, 8, 14, 20, 28, 50, 82, and 126. Atomic nuclei consisting of such a magic number of nucleons have a higher average binding energy per nucleon than would be expected based upon calculations given by the semi-empirical mass formula, and hence are more stable against nuclear decay. The unusual stability of isotopes having magic numbers means that transuranium elements can be created with extremely large nuclei and yet not be subjected to the extremely rapid radioactive decay normally associated with high atomic numbers.
    Time independence: [∂E(g)]²=[∂F(a)×∂r(a)]·[∂F(b)×∂r(b)] and Mass independence: a(tr(t)=c²

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  3. #2
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    Re: radioactive women

    Marie Curie


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  5. #3
    Raider of the lost time
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    Re: radioactive women

    40 high achiever women who received Nobel Prizes are:

    The Nobel Prize in Physics
    1963
    Maria Goeppert-Mayer
    1903
    Marie Curie
    The Nobel Prize in Chemistry
    2009
    Ada E. Yonath
    1964
    Dorothy Crowfoot Hodgkin
    1935
    Irène Joliot-Curie
    1911
    Marie Curie
    The Nobel Prize in Physiology or Medicine
    2009
    Elizabeth H. Blackburn
    2009
    Carol W. Greider
    2008
    Françoise Barré-Sinoussi
    2004
    Linda B. Buck
    1995
    Christiane Nüsslein-Volhard
    1988
    Gertrude B. Elion
    1986
    Rita Levi-Montalcini
    1983
    Barbara McClintock
    1977
    Rosalyn Yalow
    1947
    Gerty Cori
    The Nobel Prize in Literature
    2009
    Herta Müller
    2007
    Doris Lessing
    2004
    Elfriede Jelinek
    1996
    Wislawa Szymborska
    1993
    Toni Morrison
    1991
    Nadine Gordimer
    1966
    Nelly Sachs
    1945
    Gabriela Mistral
    1938
    Pearl Buck
    1928
    Sigrid Undset
    1926
    Grazia Deledda
    1909
    Selma Lagerlöf
    The Nobel Peace Prize
    2004
    Wangari Maathai
    2003
    Shirin Ebadi
    1997
    Jody Williams
    1992
    Rigoberta Menchú Tum
    1991
    Aung San Suu Kyi
    1982
    Alva Myrdal
    1979
    Mother Teresa
    1976
    Betty Williams
    1976
    Mairead Corrigan
    1946
    Emily Greene Balch
    1931
    Jane Addams
    1905
    Bertha von Suttner
    The Prize in Economic Sciences
    2009
    Elinor Ostrom
    Time independence: [∂E(g)]²=[∂F(a)×∂r(a)]·[∂F(b)×∂r(b)] and Mass independence: a(tr(t)=c²

 

 

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