In order to test the nature of the information acquired by pigeons at home and utilized as "map" component in their navigational mechanism, groups of birds were kept since fledging time in glass corridors, which had their main axis oriented E-W (or ESE-WNW). Referring to the quadrants ...
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of the moments MXb of the three blades of the wind rotor. Therefore, the wind torques of the rotors in the = 0 and = 60 parking positions were opposite for most wind ...