Word: cm
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...process known as induction, convert the magnetic force back into electricity. When such a metal plate is suspended from the bottom of a battery-run car, the vehicle can pick up power simply by moving down an electrified road. For maximum performance the plate needs to glide within 5 cm to 8 cm (2 in. to 3 in.) of the road's surface, which must therefore be unusually smooth...
...other types of lemur, made his latest find with the aid of a stray dog, who located the tree hole where the nocturnal animal was sleeping. Although five specimens were preserved for museums between 1875 and 1965, scientists knew little about them. Meier found that they are about 14 cm (5.5 in.) long, with a slightly longer furry tail, and weigh less than a chocolate bar. After releasing his quarry, Meier watched as the animal stuffed insects into its mouth while swinging from branches by its hind legs. "I almost died laughing," he says...
...measurements of each child. If he or she is too small, it can be a sign of chronic malnourishment. Danish Nutritionist Birthe Pedersen, who works for the International Committee of the Red Cross, is measuring an eight-year-old boy. The upper part of his sticklike arm is 9.8 cm around; a normal child's arm is about 15 cm. After the boy walks away, Pedersen looks grim. "He will not live very long," she says...
...ceramic superconductors carry electricity with perfect efficiency at far higher temperatures than conventional superconductors (above -320 degrees F, vs. -418 degrees F or below), making them easier to refrigerate and cheaper to use. But to be useful, they must carry at least 100,000 amps of current per square cm of cross section and 1 million amps or more in some applications. So far, the new superconductors have carried only about 1,000 amps...
...Journal of Medicine, compared the results of mastectomy with a far less radical operation called lumpectomy, in which only the breast tumor and a small amount of surrounding tissue are removed. The research involved 1,843 patients, each of whom had a tumor that measured no more than 4 cm (or about 1 1/2 in.) in diameter. The participants agreed to be assigned randomly to three different treatment groups. About one- third underwent a mastectomy, one-third had a lumpectomy, and another third received radiation treatment in addition to a lumpectomy. The women in all three groups had their underarm...