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The shape differs in that the trafficator has only the lower 'blade' of the rail signal's terminal 'arrowhead', so that the retracted trafficator sits flush with the vehicle's exterior. They were common on vehicles until the introduction of the flashing amber, red or white indicators at or near the corners of the vehicle (and often along the ...
The sound-producing rattle of rattlesnakes is an acoustic form of aposematism. [30] Sound production by the caterpillar of the Polyphemus moth, Antheraea polyphemus, may similarly be acoustic aposematism, connected to and preceded by chemical defences. [31] Similar acoustic defences exist in a range of Bombycoidea caterpillars. [32]
For 1981, the model line underwent a major rebranding. In line with its pickup truck counterpart (which became the Dodge Ram pickup), the Dodge Tradesman and Sportsman nameplates were retired in favor of Dodge Ram Van and Wagon; the B-series nomenclature remained, revised to B150, B250, and B350. Derived from the B150, the Mini-Ram was a higher ...
The movement of the membrane varied the capacitance "seen" by the antenna, which in turn modulated the radio waves that struck and were re-transmitted by the Thing. A receiver demodulated the signal so that sound picked up by the microphone could be heard, just as an ordinary radio receiver demodulates radio signals and outputs sound.
A covert listening device, more commonly known as a bug or a wire, is usually a combination of a miniature radio transmitter with a microphone. The use of bugs, called bugging, or wiretapping is a common technique in surveillance , espionage and police investigations.
When you're dining outdoors, it's important to take measures to prevent ants, flies and other insects from eating off your plate. Don't let these uninvited guests ruin your next picnic or patio party.
The predatory species mediating indirect interactions between the mimic and the model is variously known as the [signal] receiver, dupe or operator. By parasitising the honest warning signal of the model, the Batesian mimic gains an advantage, without having to go to the expense of arming itself. The model, on the other hand, is disadvantaged ...
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