Word: magnetically
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Dates: during 1930-1939
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Harvard's Magnet...
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...
...Separation of hemoglobin, blood's red coloring matter, from the blood serum would require 180 years by gravity sedimentation, but may be accomplished in six hours with DuPont's new Svedberg (1 electro-condenser, 2 atom gun, 3 molecular magnet, 4 centrifuge, 5 chemical reducer...
These two great flaws, in tutoring and in lecturing, may, in turn, account partly for the field's reputation as a "snap" and magnet of many men who care not a whit for the subject or for education generally. Once in the Department, lacking self-motive power, they continue to drift in the doldrums, with little departmental breeze to spur them onward. More than this, if the field is to shed its odious name, it must look to all its standards and requirements...
...Lawrence has learned not to trifle with the big magnet. Once a small metal part worked loose within its field, whizzed into the core, nipped off the end of Dr. Lawrence's finger on the way. He and his men carry little gadgets resembling fountain pens clipped to their pockets, electroscopes to warn them of baneful radiations of the sort that set up tissue necrosis in x-ray experimenters. But neutrons, electrically inert particles, do not affect electroscopes, and penetrate many times farther than x-rays. Dr. Lawrence found that rats placed a few inches from the neutron source...