Banyan tree
San Francisco from air. II
Northern side of Elephant Tank {ಆನೆ ಕೆರೆ }
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THE ARCH OF TRIUMPH OF HISTORY'S GREATEST EMPIRE
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Ward No.103
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San Francisco from air


NASA had gathered some of the world’s best vision scientists to work on the perceptual problems encountered by helicopter pilots, like perceiving how fast they were flying and how high above the ground they were. Unlike that of birds , the human visual system assumes that our feet are always firmly planted on the ground, and thus, when computing speed, it employs the simplifying assumption that we are always travelling at an unchanging altitude corresponding to our eyes height@ this assumption works fine if you are in fact walking on the ground, but it doesn't work at all when your altitude changes. As your altitude increases, the ground below you appears to move move slowly, and you feel that you’re slowing down. You may have noticed that, when looking out of an airplane window, you do not feel tha you are hurtling through the air at more than 500 miles per hour. . . . . The workship scientists took for granted a conventional view of visual processing: your eyes take in visual information, your brain processes it, and the world’s structure is accurately perceived. A key assumption in this formulation is that perceptual experience is, for the most part, objectively accurate. . . . Page 36
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