Word: electronically
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...greatest geniuses." O'Neill credits him not only with inventing the polyphase alternating current generator and Tesla induction motor, which scientists generally have hailed as the basis of "our electrical power era" (TIME, July 20, 1931), but also with discovering the basic principles of the radio, radar, electronic tube, X ray, fluorescent light, electron microscope, rocket bomb, etc. All these and the discovery of cosmic rays besides, says O'Neill, were inspired by basic Tesla findings. Less ardent admirers do not go so far: they classify many of Tesla's "discoveries" as mere hunches, lacking in scientific...
...phenomenal new electron microscope (TIME, Dec. 14, 1942) has been taking a good long look at hitherto invisible objects. In the last two issues of the Journal of the American Medical Association, its bacteriological discoveries have been summarized. (Most of the 60 machines in existence are used in industrial work.) The microscope's great magnifications-50,000 to 130,000 times normal size-have proved the existence of some things (e.g., molecules) only imagined before, of other things never imagined.* Some findings...
...Journal's summary concludes that the electron microscope can eventually help doctors figure out a drug or vaccine to cure any infection...
...Electron microscopes do not let a man "look" at bacteria, nor do they take photographs. They spray electrons through a bacteria sample, making a silhouette picture on a fluorescent screen or photographic plate...
There is another reason for this X-ray tube's phenomenal performance: it uses a "magnetic lens," similar to that in the electron microscope (TIME, Dec. 14, 1942), to focus the electron beam in the tube on a bull's-eye only .01 inch in diameter, instead of the usual quarter-inch focal spot. Thus the X rays emerge in a sharp beam and produce well-defined shadows even after passage through thick steel...