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The eyes are positioned on the top of the head, and the fish floats at the water surface with only the lower half of each eye underwater. The two halves are divided by a band of tissue and the eye has two pupils, connected by part of the iris. The upper half of the eye is adapted for vision in air, the lower half for vision in water. [35]
Peter's vision of a sheet with animals, the vision painted by Domenico Fetti (1619) Illustration from Treasures of the Bible by Henry Davenport Northrop, 1894. According to the Acts of the Apostles, chapter 10, Saint Peter had a vision of a vessel (Greek: σκεῦος, skeuos; "a certain vessel descending upon him, as it had been a great sheet knit at the four corners") full of animals being ...
Entoptic phenomena (from Ancient Greek ἐντός (entós) 'within' and ὀπτικός (optikós) 'visual') are visual effects whose source is within the human eye itself. (Occasionally, these are called entopic phenomena, which is probably a typographical mistake.) In Helmholtz 's words: "Under suitable conditions light falling on the eye ...
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After the men’s all-around final, fans online pegged Nedoroscik as the “Clark Kent of pommel horse,” inspired by his glasses and the way he would take them off while competing.
Mercedes and Jonathan Sandhu, the Texas couple who welcomed identical quadruplets, have brought Hannah, Lucy, Rebecca and Petra home from the hospital.
The evolution of color vision in primates is highly unusual compared to most eutherian mammals. A remote vertebrate ancestor of primates possessed tetrachromacy, [ 1] but nocturnal, warm-blooded, mammalian ancestors lost two of four cones in the retina at the time of dinosaurs. Most teleost fish, reptiles and birds are therefore tetrachromatic ...
Cold showers may also improve mood and energy or mental alertness, which Dr. Rachelle Reed, an exercise physiologist in Athens, Georgia, has experienced, she said. “You sort of feel a little bit ...