A wonderful book for history-of-science buffs that will also amuse math teachers, because the many problems and solutions...
Three cheers for Leonardo Pisano, nicknamed Fibonacci, heralded by NPR’s “Math Guy” Devlin (Mathematics Education for a New Era: Video Games as a Medium for Learning, 2011, etc.) as the man who introduced Hindu-Arabic numbers (0 to 9) and rules of arithmetic to Europe in the 13th century.
The author writes that by far the most important contribution that Pisano native made to Western culture was not the Fibonacci numbers (the series in which each term is the sum of the two previous terms, e.g., 1,1,2,3,5,8,13—celebrated in The Da Vinci Code) but the replacement of Roman numerals with the familiar 10 digits and place notation. That was a boon to merchants and bankers, moneychangers and tax collectors, just when the world was poised for the science and technology discoveries of the Renaissance. It all came about because Pisano’s father, a customs official, took his teenage son with him to North Africa, where the boy learned about the numerical system that Arab traders had brought from India. Devlin makes clear that he was not a passive transmitter of new knowledge but a gifted thinker whose magisterial Liber Abaci (Book of Calculation), published in 1202, and later popularizations, as well as works in algebra and geometry, mark him as one of mathematics’ great minds. As for the series, Pisano wrote that it was known early on to Indian scholars, and he stated it as a problem to determine how many rabbits a fertile pair would produce in a year “when it is the nature of them in a single month to bear another pair. And in the second month those born to bear also.”
A wonderful book for history-of-science buffs that will also amuse math teachers, because the many problems and solutions included are simply medieval versions of the word problems that are the bane of many high-school students.Pub Date: July 5, 2011
ISBN: 978-0-8027-7812-3
Page Count: 192
Publisher: Walker
Review Posted Online: May 3, 2011
Kirkus Reviews Issue: May 15, 2011
An engrossing, intense, and highly descriptive narrative chronicling the ghastly conditions three pregnant women suffered...
The incredible true story of three Jewish women who survived the Holocaust.
Priska, Rachel, and Anka were married Jewish women in their early 20s when the Nazis took control of Europe. Like millions of other Jews, they were forced to give up their normal lives, all of their belongings, and their homes. Shuttled into ghettos and then off to one of the most notorious camps, Auschwitz II-Birkenau, they suffered through the Nazis’ increasing atrocities. But these three women all held a secret: they were pregnant. They were moved from Auschwitz and ended up in Mauthausen, another notorious death camp. With facing the most horrible conditions imaginable, all three gave birth right before the Allies accepted Germany’s surrender. In this meticulously detailed account, Holden (Haatchi & Little B: The Inspiring True Story of One Boy and His Dog, 2014, etc.) compiles an enormous amount of information from interviews, letters, historical records, and personal visits to the sites where this story unfolded. The graphic history places readers in the moment and provides a sense of the enduring power of love that Priska, Rachel, and Anka had for their unborn children and for the husbands they so desperately hoped to see after the war. Even though it occurred more than 70 years ago, the story’s truth is so chillingly portrayed that it seems as if it could have happened recently. These three women and their infants survived in the face of death, and, Holden writes, “their babies went on to have babies of their own and create a second and then a third generation, all of whom continue to live their lives in defiance of Hitler’s plan to erase them from history and from memory.”
An engrossing, intense, and highly descriptive narrative chronicling the ghastly conditions three pregnant women suffered through at the hands of the Nazis.Pub Date: May 5, 2015
ISBN: 978-0-06-237025-9
Page Count: 400
Publisher: Harper/HarperCollins
Review Posted Online: March 28, 2015
A wonderful page-turner written with humility, immediacy, and great style. Nothing came cheap and easy to McCandless, nor...
The excruciating story of a young man on a quest for knowledge and experience, a search that eventually cooked his goose, told with the flair of a seasoned investigative reporter by Outside magazine contributing editor Krakauer (Eiger Dreams, 1990).
Chris McCandless loved the road, the unadorned life, the Tolstoyan call to asceticism. After graduating college, he took off on another of his long destinationless journeys, this time cutting all contact with his family and changing his name to Alex Supertramp. He was a gent of strong opinions, and he shared them with those he met: "You must lose your inclination for monotonous security and adopt a helter-skelter style of life''; "be nomadic.'' Ultimately, in 1992, his terms got him into mortal trouble when he ran up against something—the Alaskan wild—that didn't give a hoot about Supertramp's worldview; his decomposed corpse was found 16 weeks after he entered the bush. Many people felt McCandless was just a hubris-laden jerk with a death wish (he had discarded his map before going into the wild and brought no food but a bag of rice). Krakauer thought not. Admitting an interest that bordered on obsession, he dug deep into McCandless's life. He found a willful, reckless, moody boyhood; an ugly little secret that sundered the relationship between father and son; a moral absolutism that agitated the young man's soul and drove him to extremes; but he was no more a nutcase than other pilgrims. Writing in supple, electric prose, Krakauer tries to make sense of McCandless (while scrupulously avoiding off-the-rack psychoanalysis): his risky behavior and the rites associated with it, his asceticism, his love of wide open spaces, the flights of his soul.
Pub Date: Jan. 1, 1996
ISBN: 0-679-42850-X
Page Count: 320
Publisher: Villard
Review Posted Online: May 19, 2010
Kirkus Reviews Issue: Oct. 15, 1995
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