The Physics of Christmas

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Why might Rudolph's nose have been red? Why do we actually give Christmas gifts? Why has smell become an important component in the Christmas shopping experience? Roger Highfield, science editor of London's Daily Telegraph and co-author of the highly acclaimed The Arrow of Time, has taken a long-overdue look at our most cherished holiday from the rigorous (but highly entertaining) viewpoint of a scientist. What are the thermodynamics involved in cooking a turkey? What are the likely celestial candidates for the Star of Bethlehem? Is the concept of a virgin birth scientifically feasible? What happens to us physically when we overindulge in alcohol? How does snow form? Why are we always depressed after Christmas? How does Santa manage to deliver all those presents in one night? (He has, in fact, little over two ten- thousands of a second to get between each of the 842 million households he must visit.) The Physics of Christmas is that rare science book that manages to be as delightful as it is informative. Amazon.com Review Roger Highfield loves science, and he loves Christmas, too. Combining the two in The Physics of Christmas is his attempt to refute the notion that "the materialist insights of science destroy our capacity to wonder, leaving the world a more boring and predictable place." To that end, Highfield presents an amusing, eclectic, and trivia-filled collection of scientific observations about one of the Western world's most beloved holidays. Contrary to the title, Highfield doesn't limit himself to physics. His anthropological observations include tracing the origins of Santa Claus--an especially amusing and enlightening chapter entitled "Santa: The Hallucinogenic Connection" examines the possibilities of the psychoactive mushroom Amanita muscaria 's red-and-white cap being the inspiration for Santa's robes. In a tip of the stocking cap to biology, Highfield hints at a parasitic infestation that may be responsible for poor Rudolph's red nose and examines the advantages of cloned Christmas trees. Psychologically speaking, we find an analysis of the emotional weight of gift giving and card exchanging (sever all relationships with those who send musical cards, research suggests), and how a holiday can be both religious and commercial. Even post-holiday depression is deconstructed, along with Santa's unhealthy obesity and apparent immortality, the effects of alcohol on sleep patterns, the astronomical origins of the Bethlehem star, and the ins and outs of snow. You'll never look at the trappings of Christmas the same way after reading Highfield's seriously funny book. And you may accidentally learn something, too. --Therese Littleton Review ...a delightful compendium of seasonal science.... Relying on the research of an eminent list of scholars from around the world, he endeavors to enrich our understanding of everything associated with the holiday, providing genuine insights as well as fanciful speculation. -- The New York Times Book Review , Simon Singh