Word: bones
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...Kooros uses criteria regarding shape and markings to distinguish rough tools from ordinary bone scraps. She feeds the criteria to a computer, which measures how well the description of each bone meets these standards...
...Peabody Museum research director is using computers to find out whether certain prehistoric bone fragments were used as tools...
...explained that some pieces of bone, such as harpoons, have specific shapes and are easily identifiable as tools. But many rough fragments may or may not have been tools, and in these cases Mrs. Kooros' method is useful...
Until now, it has been almost impossible to prove that certain rough fragments were prototypes of more sophisticated, well-formed bone tools, Mrs. Kooros said. "This was a real problem," she said, "because men didn't suddenly start making perfectly-shaped tools. First there had to be some crude prototypes...
...zagged lazily back down the mountain, through pine trees and leafless aspen, pausing only for a lunch of coffeecake and hot chocolate in an alpine meadow. Meanwhile, at Lancaster, N.H., the emphasis was on all-out action: 121 competitors, vying for 56 trophies and cash prizes, slammed through bone-jarring, cross-country or downhill obstacle races...