Word: cobalt
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Supernova 1987A produced high amounts of radioactive nickel which decayed into radioactive cobalt in a week. This cobalt is still decaying, producing a prodigious quantity of gamma rays and x-rays. The experiment will measure the x-rays emitted by the supernova...
...been gradually dimming. One possible explanation was proposed by Astronomer Stan Woosley of the University of California at Santa Cruz. He suggests that the decay of radioactive elements within 1987A's cloud of debris is now generating the light. If he is right, gamma-ray emissions from decaying cobalt 56 should start showing up this summer. Concedes Woosley: "I'm out on a limb." A more radical theory, put forth by Princeton Astrophysicist Jeremiah Ostriker, proposes that the neutron star that formed at 1987A's center when Sanduleak exploded has turned into an extremely rapidly rotating pulsar that is leaking...
...second round at a cost of $91,000, it was thought to offer little advantage and was never used in competition. Other syndicates made furious and fancy changes before the December race series. Stars & Stripes added a new mast, French Kiss new sails. USA changed to lighter nickel-cobalt rigging, and the weight saving, under the complicated 12-meter formula, was put back into the boat as ballast to counteract the rising winds and seas of the Australian summer...
...method, which like radiology was developed around the turn of the century, is simple: food passes through a lead-shielded concrete chamber where radioactive cobalt 60 or cesium 137 bombards it with gamma rays, killing insects and bacteria and sometimes slowing ripening. The food does not become radioactive. "There's nothing in common at all between a nuclear reactor like Chernobyl and an irradiator," says Karl Abraham, a spokesman for the Nuclear Regulatory Commission (NRC). "It's like comparing bananas to tigers." Treated food "can be immediately eaten," says George Giddings, director of food irradiation at Isomedix...
...Princess of Wales appeared at a ball for Britain's Fashion Week, an almost audible gasp of surprise rippled through the assemblage of London designers. In other surroundings Diana might have prompted yawns: she had chosen a dressing gown--bathrobe to most Yanks--made from turquoise, fuchsia and cobalt-blue silk faconne and worn over a formal dress. "Wearing it in public put the royal seal of approval on it," said delighted David Sassoon, who designed the robe for her after seeing the boudoir look in U.S. publications. Meanwhile, Charles and Diana accepted an invitation to visit Ronald and Nancy...