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Updated: May 25, 2025
"Yes, but the ships could exist in the castle pattern; the pylons could not!" "Which period are you aiming for first the castle or the pylons?" "Castle first, I think. Then if we can't pick up any hints, we'll take some jumps forward until we do connect. Only we'll be under severe handicaps. If we could only plant an analyzer somewhere in the castle as a beginning."
Lord Rayleigh supported this theory of the formation of Newton's rings by several interesting experiments. A beam of light was intercepted by two of Nicol's prisms, one of which acted as a polarizer and the other as an analyzer of the light, so that no light was able to pass through both on to the screen.
If a jam factory employs a trained chemist, why isn't it worth a publisher's while to employ an expert book analyzer? There are some of them. Look at the fellow who runs the Pacific Monthly's book business for example! He knows a thing or two. CHAPMAN I think perhaps you exaggerate the value of those trained experts. They are likely to be fourflushers.
And the more refrangible the light the greater is the amount of twisting; so that, when white light is employed, its constituent colours are thus drawn asunder. Placing the quartz plate between the polarizer and analyzer, this vivid red appears; and, turning the analyzer in front from right to left, the other colours of the spectrum appear in succession.
Tom asked Bud with a grin. "Sure, but don't tag me with a torpedo!" Minutes later, the jetmarine slipped off into the depths with Bud and two other crewmen aboard. Tom and Arv followed in the seacopter. The quality analyzer sonar worked even better than Tom had hoped.
Tom gave Ames a full report on his own apparatus for rendering a submarine invisible to underwater detection. Ames grinned at the news. The grin grew even wider as he heard of the successful test of the quality analyzer sonar. "Bud Barclay's on his way to the South Atlantic right now with a fully equipped jetmarine," Tom ended.
'You see in the spectrum of the reddish light produced by the selenite a broad but dark band in the blue; when the analyzer is turned round the band becomes less and less dark, until when the angle of turning amounts to 45° it has entirely disappeared.
Tom awoke the next morning feeling entirely refreshed, and after a hearty breakfast, hurried off to the plant. Here he plunged into work on his quality analyzer sonar. Much of the circuitry was assigned to the electronics department. The finished boards and sub-assemblies were fed back to Tom in his private laboratory. He himself assembled the major units.
If they are similarly placed that is, as if they were one plate of crystal they will behave as a single plate, whose thickness is the sum of the thicknesses of each, and will produce double the number of bands which one alone would give; and when the analyzer is turned, the bands will disappear and re-appear in their complementary positions, as usual in the case of plane-polarization.
Now, when the Nicols are parallel, the retardation of half a wave-length, or of any odd number of half wave-lengths, produces extinction; at all thicknesses, on the other hand, which correspond to a retardation of an even number of half wave-lengths, the two beams support each other, when they are brought to a common plane by the analyzer.
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