| Format: | Explores the sense of sight. Uses animation to show how light enters the eye and how the image is interpreted by the brain. Shows optical illusions and explains that what a person sees depends partly on where attention is focused, what one wants to see, and on one's past experience. |
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| Copyright: | 1982 |
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| LCCN: | 82706605 /F |
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| Publisher: | Washington, D.C. : National Geographic Society, Educational Services, |
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| Physical Details: | 1 videorecording (15 min.) : sd., col. + |
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| Notes: | Title from data sheet. | Intended audience: Primary through intermediate grades. | Issued as cassette (U-matic 3/4 in. or Beta 1/2 in. or VHS 1/2 in.) or reel (1/2 in. or 1 in.) | Issued also as motion picture. |
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| Record No.: | 195438 |
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04. English Audio Visual