Word: magnetized
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Harvard's Magnet...
Your Art article [TIME, Aug. 10] about Harvard's model forest says that the leaves were "etched out of paper-thin sheets of copper picked up with a magnet...
Neither Harvard nor anyone else has a magnet which attracts non-ferrous metal...
...tiny copper leaves are picked up by magnet because they are soldered on steel wire...
Twig, branch, and bole, each miniature tree in the Harvard Forest display was built up of strand upon strand of fine copper wire, then soldered and painted. Microscopic details like vines, pine needles and cones were etched out of paper-thin sheets of copper picked up with a magnet. Dentists' picks and scrapers were used for modeling tools. Making rocks was the most fun. A double fistful of whiting and glue was allowed to harden, then hurled full force against the studio wall. The fragments, painted in oils and dusted with dry color, were rocks...