Word: dupouy
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...French microscope at the Toulouse Electron Optics Laboratory is housed in a shining aluminum sphere 78 ft. in diameter. Professor Gaston Dupouy, head of the laboratory and the microscope's chief operator, explains that he protects bacteria by enclosing them in a tiny air-filled cell that fits on the microscope's stage. The cell has two windows, one on the top, the other on the bottom, which are covered with collodion film less than four-millionths of an inch thick. The windows are so small (four-thousandths of an inch in diameter) that this gossamer stuff...
...volt electrons of ordinary microscopes are not powerful enough to penetrate the two layers of film and the plump, water-filled bodies of healthy bacteria. So the upper part of Dupouy's sphere is filled with a powerful accelerator that delivers a beam of million-volt electrons. They are tricky and dangerous to handle, but carefully measured bursts of them pass through living bacteria and make meaningful shadow pictures of their insides, magnified 25,000 times. The bacteria are little the worse for their experience. Dupouy testified almost affectionately that when they are taken out of the formidable microscope...