Kodak
reports on:
an unlisted recording material . . . orderly rummaging . . . lecture slides at 50 paces . . . the question raised by a new film
The answer is yes Usually when an organization decides on some sort of public response to rumors, the response comes out denying every thing. Here is a switch. This is written to confirm the existence of an unlisted lightsensitive recording material that is economical, produces an image of excellent legibility with a microsecond or less of ex
posure, requires no processing solutions, and shows a high degree of image stability. The problem of accomplishing this with a reasonable amount of light is easing up. What's it to you? An answer is impatiently awaited by Photorecording Methods Division, Eastman Kodak Company, Rochester, Ν. Y. 14650.
l-r for IR's sake He is telling the man that a set of 11 microfilm maga zines like the one in his hand and the one he has inserted in the top of the reader holds the 2 1 , 0 0 0 infrared absorption spectra that at least one publisher now sells in microfilm form. Other magazines {or rolls, aperture cards, film jackets, microfiches—all of which are compatible) will supplement this basic library with the man's own spectra. When matching "fingerprints" or when deducing the structure of a new compound by comparison with related ones, the larger the library the easier the task, provided the indexing system is good. When it yields a desired number, the man will insert the proper magazine and let the microfilm race until the code lines on the film, seen against the scale along side the screen, find their mark. On the screen appears the desired spectrum. The piece of paper is a "hard" copy thereof, such as emerges from the slot in the base at a touch of that button he is pressing. Nobody gets a chance to ruin the integrity of the file.
Consider a man who holds down a job determining the iden tity of unknown substances. On his income tax return he has
Warmth from the projector Judge a "paper" at a meeting on cogency, originality, com prehensiveness, brevity, ingenuity, precision, soundness, in sight, conclusiveness but not on the quality of the slides. You cannot but agree and surely resolve to stifle every groan when next a learned peer assaults you by slide projector with 350 data-points at a blow on a 48-inch screen at 50 paces. He is not necessarily perpetrating a snow job on you. More likely he knows no better. If he could only wait to give the paper in 1974, his management would doubtless arrange for him to
written "chemist." His family thinks of him holding a test tube up to the light and scowling at it. Actually, a far more typical working pose would show him rummaging through heaps of long strips of paper as he searches for an IR absorp tion spectrum that some pinhead has misplaced. In moments of agonizing self-appraisal he knows that the way analytical chemistry is practiced today, a more orderly approach to in formation storage and retrieval may earn several times as many points as the ability to name from memory nine ways to test for urea. Expertise on the i-r (information-retrieval, that is) problems of the modern analytical laboratory can hardly be expected to come from within. Recordak Corporation, 770 Broadway, New York City 10003, a subsidiary of Eastman Kodak Com pany, can hardly wait to send a representative who is well aware that every lab has to work differently, that some will have us do their microfilming for them, that some will want to lease the right kind of microfilmer and do it themselves, that some generate enough spectra to justify buying their own microfilmer, etc., etc.
turn over his data and his logical inductions to a professional but anonymous presenter skilled in warming up cold fact. (The actual investigator will as always be available for the bull sessions that justify the travel expense. The thespian alter ego cannot be expected to field hard questions.) Where management does not yet provide thefull service, a temporary expedient worthy of consideration by the non-professional presenter is to request the free pamphlet "Effective Lecture Slides" from Eastman Kodak Company, Sales Service Division, Rochester, Ν. Y. 14650. The management itself may even appreciate knowing that it can order this pamphlet in lots of 100 at $6 per 100.
For background on how many milliroentgens film can distinguish from natural background A new free pamphlet on personal monitoring films is available from Eastman Kodak Company, Special Sensitized Products Division, Roch ester, Ν. Υ. 14650. It contains a bibliography.
For background to the need for background on monitoring against background Health physicists make a profession out of keeping the human race from being the worse off for having discovered radio activity and x-rays. Apart from the healing arts, far more places make worthy use of radiation than engage health physicists. This results in wide reliance on agreed "safe" levels of personal exposure, as measured by commercial film-
badge firms. The arrangement permits the customer to treat the whole thing as routine. Is there any obligation to reopen the subject merely because a newer Kodak film happens to make it just as easy to detect a much smaller increment over natural background than was possible when the conveniently safe levels were chosen?
This is another advertisement where Eastman Kodak Company probes at random for mutual interests and occasionally a little revenue from those whose work has something to do with science 104 A
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ANALYTICAL CHEMISTRY
