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Simple Bouguer gravity map of Massachusetts Simple Bouguer gravity map of Massachusetts
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Surveying the earth's resources from space Surveying the earth's resources from space
Two developments, aerial photography and airborne geophysical surveying techniques, have already increased the rate at which new knowledge of the world's resources can be acquired. But even with far wider use of the tools and techniques already available, the problems that face us are greater than our current ability to solve them. Fortunately, some of the further acceleration required...