Instructions in Military Signaling for the Use of the Regular And Volunteer Army
Instructions in Military Signaling for the Use of the Regular And Volunteer Army
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In our eReader you can find the full English version of the book. Read Instructions in Military Signaling for the Use of the Regular And Volunteer Army Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Instructions in Military Signaling for the Use of the Regular And Volunteer Army
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Repeat- ing the experiment at increased distances, these results are confirmed, with the following conclusions : a. That up to a certain distance the form of the mirror is reflected upon the screen. H. That this distance once exceeded, the reflected images obtained from mirrors of various shapes and sizes are all circular and of equal diameters at equal distances. C. That the greater the distance from the mirror to the screen, the greater the diameter of the reflected image. D. That the images ...vary in brightness, the larger mirrors producing the brighter images. It is therefore evident that the advantage derived from the use of a large mirror consists, not in any in- crease in the size of the flash, but in an increase of brightness — that is, capability of overcoming such ob- structions as fog, smoke, haze, and consequently dis- tance. 30. The light from the sun is projected upon the surface of the mirror in a cone of rays, and is reflected in a cone of the same dimensions. The angle within which the reflection is visible is that subtended by the diameter of the sun.
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To quickly assess the difficulty of the text, read a short excerpt:
Repeat- ing the experiment at increased distances, these results are confirmed, with the following conclusions : a. That up to a certain distance the form of the mirror is reflected upon the screen. H. That this distance once exceeded, the reflected images obtained from mirrors of various shapes and sizes are all circular and of equal diameters at equal distances. C. That the greater the distance from the mirror to the screen, the greater the diameter of the reflected image. D. That the images ...vary in brightness, the larger mirrors producing the brighter images. It is therefore evident that the advantage derived from the use of a large mirror consists, not in any in- crease in the size of the flash, but in an increase of brightness — that is, capability of overcoming such ob- structions as fog, smoke, haze, and consequently dis- tance. 30. The light from the sun is projected upon the surface of the mirror in a cone of rays, and is reflected in a cone of the same dimensions. The angle within which the reflection is visible is that subtended by the diameter of the sun.
What to read after Instructions in Military Signaling for the Use of the Regular And Volunteer Army?
You can find similar books in the "Read Also" column, or choose other free books by Howard Andrus Giddings to read onlineMoreLess
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