Camouflage purpose

The melanin of sepia is found in the ink sac of cuttlefish. Aristotle in his book Historia Animalia mentioned that instead of intestines molluscs have an organ known as the mytin where a black substance is found which is especially abundant in cutdefish they put forth this black substance when frightened, particularly the cuttlefish . The ink has considerable staining power, and is alkaline and odorless. When fresh it disperses readily in water and is partly soluble in alkali, but insoluble in acid. This biological function of melanin appears to be defensive but the mechanism is uncertain (270). However, like other pigments, melanin can be utilized for camouflage purposes in insects and fishes. 

Try to keep wires short enough that the circuit can fire before it is recognized as a "trap" or camouflage it. The CLOTHESPIN SWITCH, page U of PNA Vol. 1 /I is a good one to use 1r boxes for any purpose. 

Assessment of camouflage samples was by the describable criteria method, in which degrees of visibility, like those which would be encountered at sea, were predetermined for purposes of comparison. No attempt was made to use any numerical scale of visibility. Instead, physical constraints on the range were varied to produce the individual criteria or degrees of visibility determined. For each task three visibility criteria were established and for a typical camouflage evaluation exercise they might have been ... 

There must be physical barriers, else one unfortunate incident may counteract all work done to that point. Moats, fences, and barrier strips devoid of tasty vegetation would serve this purpose. Naturally, these must be camouflaged as much as possible. 

Chemical agent-resistant coatings (CARC) consist of a surface cleaning, epoxy primer, epoxy interior topcoat, and a polyurethane exterior top coat. The purpose of this coating was to provide resistance to chemical penetration of the coating and to aid in decontamination of the vehicle in case of chemical attack. Other purposes of the coating were to provide corrosion protection as well as camouflage protection. 

Camouflage has been used for ages in the animal kingdom, as well as by humankind, to assist with hunting activities, as well as to assist in survival. However, modem camouflage is approached at a much more sdentilic level the how, when and where are much better understood today than 50 years ago. The main purpose of modem camouflage (Fig. 5.1) is, through patterns and colours, to ... 

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