6. One Hundred Years of Women in Chemistry in the 20Th Century
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RACHEL MAMLOK-NAAMAN, RON BLONDER, AND YEHUDIT JUDY DORI 6. ONE HUNDRED YEARS OF WOMEN IN CHEMISTRY IN THE 20TH CENTURY Sociocultural Developments of Women’s Status INTRODUCTION The Scientific Revolution established science as a source for the growth of knowledge. During the 19th century, the practice of science became professionalized and institutionalized in ways that continued through the 20th century. As scientific knowledge rapidly increased in society, it was incorporated into many aspects of the characteristics and functions of nations and states. A chain of advances in knowledge, which have always complemented each other, has marked the history of science. Technological innovations bring about new discoveries, which lead to other innovations, which inspire new possibilities and innovative approaches to long-standing scientific issues and open questions. However, women scientists often had difficulty in combating gender discrimination in their professional lives. For example, socialist women scientists who believed in Marxist principles regarding class as the dominant social force have long resisted the idea of struggling against gender bias because it would detract from the presumably more basic class struggle. Many other women scientists disliked attracting attention as women, as opposed to being acknowledged as just (presumably gender-neutral) scientists. This chapter is devoted to the contribution of five women whose chemistry discoveries were part of the development of scientific and technological innovations from the beginning of the 20th century. We also discuss reasons for women’s underrepresentation in the sciences. BACKGROUND The 20th century was characterized by a major shift in the way that vast numbers of people lived, as a result of changes in politics, ideology, economics, society, culture, science, technology, and medicine. Terms such as ideology, world war, genocide, and nuclear war became common. Scientific discoveries, such as the theory of relativity and quantum physics, drastically changed the scientific world as it was then known, and scientists realized that the universe was much more complex than previously believed (Read, 1995; Wolff, 1967). Hopes were dashed M.-H. Chiu, P. J. Gilmer, and D. F. Treagust (Eds.), Celebrating the 100th Anniversary of Madame Marie Sklodowska Curie’s Nobel Prize in Chemistry. 119–139. © 2011 Sense Publishers. All rights reserved RACHEL MAMLOK-NAAMAN, RON BLONDER, AND YEHUDIT JUDY DORI at the end of the 19th century that the last few details of scientific knowledge were about to be completed. Increased scientific understanding, more efficient communication, and faster transportation transformed the world in those hundred years more rapidly and widely than in any previous century. It was a century that began with horses, simple automobiles and airplanes and culminated with the space shuttle and the space station. These developments were made possible by large- scale exploitation of fossil fuel resources (especially petroleum), by which large amounts of energy were available in an easily portable form; however, this also caused widespread concerns about pollution and the long-term impact on the environment. Other new developments included humans exploring outer space for the first time, even taking their first footsteps on the Moon (Mamlok, 1996; Mamlok-Naaman, Ben-Zvi, Hofstein, Menis, & Erduran, 2005). The media, telecommunication, and information technology (especially computers and the Internet) made the world’s rapidly increasing knowledge more widely available to everyone. Many people’s view of the world greatly changed as they became much more aware of the struggles of others and, as such, became increasingly concerned with human rights. Advancements in medical technology also improved the welfare of many people and the average life expectancy of humans increased from 35 years to 65 years in a short period of time during the 20th century (Brooks, 1996; McKeown, 1976). Rapid technological advancements, however, also allowed warfare to achieve unprecedented levels of destruction. In World War II alone over 60 million people were killed and nuclear weapons gave humankind the means to annihilate or greatly harm itself in a very short period of time. The world also became more culturally homogeneous than ever with rapid developments in transportation and communications technology, popular music and other influences of Western culture, mass migration, and the rise of international corporations, and what was arguably a true global economy by the end of the century. Scientific Discoveries The beginning of the 20th century ushered in a revolution in physics. The long-held theories of Newton were shown to be sometimes incorrect. Beginning in 1900, Max Planck, Albert Einstein, Niels Bohr and others developed quantum theories to explain various anomalous experimental results by introducing discrete energy levels. Not only did quantum mechanics prove that the laws of motion did not hold on small scales but, even more disturbing, the theory of general relativity, proposed by Einstein in 1915, revealed that the fixed background of space-time, on which both Newtonian mechanics and special relativity depended, could not exist. In 1925, Werner Heisenberg and Erwin Schrödinger (Goldstein, 1995) formulated the quantum mechanics, which explained the preceding quantum theories. The observation by Edwin Hubble in 1929 that the speed at which galaxies recede correlates with their distance, led to our understanding that the universe is expanding, and to the formulation of the Big Bang theory by Georgios Lemaitre. 120 ONE HUNDRED YEARS OF WOMEN IN CHEMISTRY IN THE 20TH CENTURY Note that currently, general relativity and quantum mechanics are inconsistent with each other and efforts are underway to reconcile the differences. From the late 1920s to the present, the field of Signal Production-Reproduction for video acquisition and replay has rapidly developed. Dr. August Karolus at the University of Leipzig, Germany, first developed a television signal. His student and laboratory assistant, Dr. Erhard Kietz, researched frequency constancy of electric tuning forks for his dissertation in 1939; he later emigrated to the US where he developed several patents in the field of video signals for Ampex Corporation. Further developments took place during World War II, which led to the practical application of radar and the development and use of the atomic bomb. Though the process had begun with the invention of the cyclotron by Ernest O. Lawrence in the 1930s, physics in the postwar period entered into a phase of what historians have called “Big Science”, requiring massive machines, budgets, and laboratories in order to test physics theories and to move into new frontiers. The primary patron of physics became state governments, which recognized that the support of basic research could often lead to technologies useful for both military and industrial applications. Women’s Status Women have been and still remain underrepresented in science and engineering. During the Scientific Revolution of the 17th century aristocratic women were active as both patrons and spokespeople of natural philosophers. In the 19th century, the ever-increasing professionalization of science and specialization of scientific domains, as well as its increasing location in the laboratory, caused science to depart from its traditional domestic base. This transition, however, further excluded women from science because social pressure kept them tied to their homes and children (Rayner-Canham & Rayner-Canham, 1997). Nevertheless, some women made important contributions: Mary Somerville and Jane Haldimand Marcet in England, through their informal textbooks, and Maria Mitchell, in the United States, who taught science to many women at Vassar College. The rise of women’s colleges in the last third of the 19th century, as well as the willingness of some universities to allow foreign women to study or even graduate, created the first generation of formally educated women scientists. In the 20th century, the shortage of technical personnel during the two world wars temporarily opened up further opportunities for women in science. Women’s place in science tended to greatly vary by discipline. Women encountered substantial resistance in the laboratory sciences. However, they were more readily accepted in observational sciences such as botany and classical astronomy, where the need for large-scale collecting and observing encouraged the spreading of an amateur subculture for both men and women. In theoretical sciences—except for mathematics, in which there was an often-explicit bias against women—they also faced fewer barriers since the equipment and facilities required were minimal. Both observational and theoretical pursuits seemed tolerably compatible 121 RACHEL MAMLOK-NAAMAN, RON BLONDER, AND YEHUDIT JUDY DORI with women’s primary familial responsibilities; observation also belonged to a socially acceptable tradition of amateur practice. During the 20th century an increasing number of women, many of them aided by enlightened male mentors, excelled in the experimental as well as the theoretical sciences. Among them were Marie Sklodowska Curie, a co-discoverer of radioactivity and radium, who worked in state-funded laboratories in Paris and won two Nobel Prizes; her elder daughter, Irène Joliot-Curie, who shared the 1935 Nobel Prize in Chemistry with her husband Frédéric Joliot for discovering artificial radioactivity; Hertha Ayrton