LUCY’S LEGACY: THE QUEST FOR HUMAN ORIGINS
by Donald C. Johanson and Kate Wong. Harmony, 2009
In 1974 paleontologist Donald C. Johanson found a female skeleton 3.2 million years old that exhibited both ape and human characteristics. Johanson and Kate Wong (who is an editor at this magazine) recount the stunning discovery of Lucy, and then they venture far beyond that to bring readers up-to-date on what has been unearthed since and the implications of these new finds for what it means to be human. Right up to such current issues as speculation about mating between Neandertals and Homo sapiens: “Indeed, I believe that Neandertals and moderns were so distinct from one another in their physical appearance, hunting behavior, language, dress, customs, and so on that they would not have interbred.” And about whether we are still evolving: “Although the levels of change are relatively small and do not signal impending speciation in Homo, they do call into question the oft-cited view that human evolution should have slowed down as culture increasingly buffered humans against natural selection.” Conver­sational, knowledgeable, flowing logically from one topic to the next, the book is packed with information of the kind that will be especially intriguing to general readers.

NAMING INFINITY: A TRUE STORY OF RELIGIOUS MYSTICISM AND MATHEMATICAL CREATIVITY
by Loren Graham and Jean-Michel Kantor. Harvard University Press, 2009
Granted, the history of set theory does not sound like the most promising material for a good read. Oh, but it is. In the early 20th century several leading Russian mathematicians were members of a heretical sect called Name Worshipping. In this practice, repetition of the name of God induced a mystical state that, according to the authors (an American historian of science and a French mathematician), helped these scholars to achieve a breakthrough in the development of set theory and the related question of the nature of infinity. It is a tale of persecution (first by the tsar and then by the communists), political intrigue and psychological crises.

Excerpt:
SIMULATION AND ITS DISCONTENTS
by Sherry Turkle. MIT Press, 2009
Turkle, founder of the Initiative on Technology and Self at M.I.T., examines the role computer simulation has played in science over the past 25 years. She looks at both what it offers and what it closes off as a younger generation “scrambles to capture their mentors’ tacit knowledge of buildings, bodies, and bombs”: 

“When nuclear testing moved underground, it became easier for weapons designers to distance themselves from the potential consequences of their art. Hidden, the bomb became more abstract. But even underground testing left craters and seismic convulsions. It scarred the landscape. Now, with explosions taking place on hard drives and in virtual reality chambers, how much harder will it be for weapons scientists to confront the destructive power of their work and its ethical implications? One weapons designer at Livermore laments that he has only once experienced ‘physical verification’ after a nuclear test. He had ‘paced off the crater’ produced by the blast. It changed him forever. His younger colleagues will not have that.”

1 Comments

1. 1. JohnUmana 09:30 AM 4/9/09

   "But humans, rarely, did interbreed with the Neanderthal, who were bulkier but intelligent and caring. The 24,500-year-old skeleton of a 4-year old boy discovered in Portugal, exhibits both Neanderthal and Homo sapiens features. The skeleton of that boy, buried with strings of marine shells and painted with red ocher, was uncovered in December 1999 by Portuguese archeologists led by Dr. Joo Zilhao, director of the Institute of Archeology in Lisbon. The discovery was made in the Lapedo Valley near Leiria, 90 miles north of Lisbon. However, the latest research, from the University of Ferrara in Italy, compared mt-DNA genetic material from Neanderthals, Cro-Magnon humans and 21st-Century Europeans. The mt-DNA from the Neanderthals and Cro-Magnons was taken from their bones. The Italian scientists found that while modern humans show clear genetic signs of their Cro-Magnon ancestry, no such link between Neanderthal mt-DNA and modern European mt-DNA could be established. The results indicate that interbreeding was rare." Excerpt from Creation: Towards a Theory of All Things by John Umana (amazon.com).

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