Word: construction
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Dates: during 1980-1989
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Part of the federally received funds will be used to construct a tunnel 300 feet below the Harbor through which sewage can be channeled to Deer Island, where a new plant will remove 90 percent of the impurities from the water. Presently, most sewage goes to Nut Island where only 50 percent of the impurities are removed, Di Natale said...
...Natale added that the MWRA will also construct a pipeline to take the purified sewage two to six miles out to sea. He said the agency will use other funds it receives to construct a system of piers that will transport the over 2,000 construction workers expected to join the clean-up out to the islands...
Applying nuclear physics techniques to his study of surfaces, Golovchenko will also use the high energy proton accelerator currently being constructed in Gordon McKay Laboratories. The facility is part of a joint Harvard and MIT project to construct the first physics research center of this kind in New England, Martin said...
...examined mtDNA from 147 individuals representing five broad geographic regions. The scientists analyzed the samples by mixing them with restriction enzymes, proteins that cut strands of DNA at specific sites. After comparing the resulting fragments, the scientists used a computer to analyze the differences between the mtDNA samples and construct a "family" tree. Those differences were so small that they could be explained by assuming the existence of one ancestral mtDNA. Then the biologists extrapolated backward to calculate when that mtDNA existed -- in other words, when Eve lived...
...learning the alphabet. This season they and their families are in luck: three ABC books offer a bright amalgam of sophistication and simplicity. In Pigs from A to Z (Houghton Mifflin; $15.95), Arthur Geisert's suite of copper etchings follows siblings with curly tails and mischievous minds as they construct a wolfproof tree house by the letters. En route, the illustrator-author ingeniously employs words that describe his book (eerie, ideal, spectacular) and performs the hardest task in children's literature: enlightening with surprises...