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Harun Yahya
The glass knife fish (Eigenmannia virescens) locates objects in much the same way as hu-
mans calculate distance. We calculate distance according to the distance between sound
waves and the time waves from the object take to reach our ear. This takes place in a
little as 1/15,000 second. Instead of the sound waves, however, the glass knife fish emits
electrical signals and detects perturbations in the self-generated electric field due to
nearby objects. As California University researchers G. Rose and W. Heilingenberg dis-
covered, the fish can perform these calculations in 400 billionths of a second, like a su-
per-computer. (“Harika Balik,” (Wonderful Fish), Hakan Durmus, Bilim ve Teknik, Mar.
1991, 43)
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