. Echoes of bats and men. Sound-waves; Echolocation (Physiology); Orientation. fi^^tA^l^^^ Fig. 14. Schematic graphs of a bat's chirp and the echoes in the flight room {Fig. 12) under various test conditions: A—approaching wires in the middle of room; B—approaching same wires near the end wall; C—approaching larger wires close to the end wall {note the larger echo); and D—approaching an insect under natural conditions in woods where many other objects also return echoes. {For simplicity the frequency modulation is not shown.) 102. Please note that these images are extracted fro
. Echoes of bats and men. Sound-waves; Echolocation (Physiology); Orientation. fi^^tA^l^^^ Fig. 14. Schematic graphs of a bat's chirp and the echoes in the flight room {Fig. 12) under various test conditions: A—approaching wires in the middle of room; B—approaching same wires near the end wall; C—approaching larger wires close to the end wall {note the larger echo); and D—approaching an insect under natural conditions in woods where many other objects also return echoes. {For simplicity the frequency modulation is not shown.) 102. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Griffin, Donald R. (Donald Redfield), 1915-. Garden City, N. Y. : Anchor Books
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