"Niels Bohr, Revised Edition" delves into the life and work of the founder of the modern atomic theory, highlighting his research on the atom and its structure, the subsequent development of the nuclear age, and his efforts to use his influence to promote peace. This revised edition offers new sidebars on subjects of interest, including the tools of physics, biographical profiles, and the recent play and film "Copenhagen", which has raised ethical concerns surrounding the relationship between science and society during wartime. Additionally, a new final chapter looks at string theory, the hypothesis that attempts to solve the universal paradoxes that have puzzled so many since Bohr's time....

Barbara McClintock was a celebrated geneticist whose 70 years of meticulous experiments in the genetics of maize, or Indian corn, have been lauded for their contributions to today's most cutting-edge technology and science, including genetic engineering and bacterial reactions to antibiotics. Winner of the 1983 Nobel Prize in Physiology or Medicine, she first became interested in genetics while studying at Cornell University in the 1920s. The threads of McClintock's remarkable work, woven against deep-rooted prejudices that often made funding difficult to attain, and sustained at times only by her deep level of commitment and determination, form the backdrop of this dramatic new biography. Crisply written and illustrated, "Barbara McClintock" illuminates the struggles and achievements of one of the most important scientific minds of our time....