Receipt of BPA risk news
Thank you so much for your recent article (“Receipts a large and little-known source of BPA,” SN: 8/28/10, p. 5) on the possible dangers of touching cash register receipts! One group you may have overlooked as being at risk was accountants and bookkeepers. I own a small tax and accounting shop where we handle literally thousands of clients’ receipts every year. Sometimes we wear latex gloves, just because the receipts are dirty (such as from a machine shop or auto repair), but now I will insist my employees do so more often, especially any young women... (p. 30)
HEAVY SHIELD UNNECESSARY — Heavy shielding as protection for an astronaut against space radiations may not be necessary, at least for trips of less than 50 hours and at distances not greater than 618 miles from earth…. [B]iological specimens were encased in different types of metal to test their effectiveness as shielding materials. Some specimens were shielded only by the thin aluminum covering of the specimen capsule and the comparatively thin shell of the recovery capsule. Radiation dosimeters showed that aluminum provided better shielding properties than lead and that any heavy... (p. 4)
December 26
Schenectady Museum in New York explores why bikes stand up. See www.schenectadymuseum.org
December 27
Author John Monahan signs copies of They Called Me Mad at the National Air and Space Museum. See www.nasm.si.edu
January 10
Deadline to submit original wake-up music for NASA’s final space shuttle mission. Go to https://songcontest.nasa.gov (p. 4)
Part of the Johns Hopkins Biographies of Disease series, this history of anthrax describes the bacteria’s transformation from agricultural disease to biological weapon.
Johns Hopkins Univ., 2010, 329 p., $24.95. (p. 32)
A historian explores Soviet science in this biography of Zhores Alferov, who won a Nobel Prize for discovering the heterojunction used in LEDs.
MIT, 2010, 307 p., $29.95. (p. 32)
Tales relate the adventures of early naturalists who risked life and limb in the quest to discover new species.
W.W. Norton, 2010, 464 p., $26.95. (p. 32)
A da Vinci expert takes a technical look at the design and engineering underlying one of the artist’s most popular but least understood drawings.
Springer, 2010, 180 p., $59.95. (p. 32)
Highlights some of the most intriguing science articles of 2009, including a tale of sexual evolution by Science News’ Susan Milius.
Ecco, 2010, 346 p., $14.99. (p. 32)
Twelve years ago, astronomers studying distant, exploding stars made a discovery that irrevocably altered humankind’s view of the universe. Most scientists had assumed that the universe’s expansion, which began during the Big Bang, had steadily slowed due to gravity. But the astronomers found that the cosmos was instead expanding faster; gravity had somehow transformed from a cosmic pull into a cosmic push.
The unseen stuff supplying this mysterious push has come to be called dark energy. Together, dark energy and dark matter, the invisible material that scientists say must exist to e... (p. 32)
It’s a sure sign of evolution: Sharks, dominant predators on Earth for millions of years, are now threatened by humans. In the past few decades shark populations have plummeted and the very traits that long helped prevent the beasts from overpopulating the seas — low birthrates, slow growth and a late arrival at sexual maturity — hinder their recovery from the depredations of overfishing, pollution and habitat destruction.
Owen, a Tasmanian author who has also demystified that island’s famous devil, takes a fascinating look at the biology of sharks, from the smallest (the 19-centi... (p. 32)