منابع مشابه
Maximum likelihood decoding and communicating using carrier pigeons
A fundamental concept in secure communication of data is the ability to detect and correct errors. In this report, we analyse a sophisticated error detection and correction algorithm when the communication medium consists of written messages tied to the legs of carrier pigeons.
متن کاملFMS - Flying Message Service: The Comeback of Carrier Pigeons
Flying Message Service (FMS) is a design project promoting community-based messaging in public spaces in the city. We have built a system that enables people to attach electronic messages to pigeons. From input stations located in public plazas, pigeons would transmit text messages to be displayed on large public screens at plazas throughout the city. The project evolved through ethnographic an...
متن کاملDomestic pigeons
Figure 1. Diversity among breeds of domestic pigeons (Columba livia). Variation among pigeon breeds is often of the magnitude observed among different species of birds, including beak size extremes of the (A) African owl and (B) Scandaroon; (C) the head crest of the Old German owl and (D) hood of the Jacobin; (E) supernumerary and elevated tail feathers of the fantail; and (F) scales versus (G)...
متن کاملEchoic memory in pigeons.
It is unknown whether birds are able to retain the memory of purely sensory auditory information such as white noise over an extended period of time. In a Pavlovian heart rate conditioning paradigm, four pigeons were trained to associate a mild electric shock with periodic random waveforms, and no shock with aperiodic noise. Periodic waveform detection requires echoic memory, i.e., the online r...
متن کاملReflexivity in pigeons.
A recent theory of pigeons' equivalence-class formation (Urcuioli, 2008) predicts that reflexivity, an untrained ability to match a stimulus to itself, should be observed after training on two "mirror-image" symbolic successive matching tasks plus identity successive matching using some of the symbolic matching stimuli. One group of pigeons was trained in this fashion; a second group was traine...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1893
ISSN: 0036-8733
DOI: 10.1038/scientificamerican09091893-14756asupp