Images in Christmas Balls

Imported: 31 Jul '16 | Published: 19 Dec '05

Eef van Beveren, Frieder Kleefeld, George Rupp

Physics - Physics Education

Abstract: We describe light-reflection properties of spherically curved mirrors, like balls in the Christmas tree. In particular, we study the position of the image which is formed somewhere beyond the surface of a spherical mirror, when an eye observes the image of a pointlike light source. The considered problem, originally posed by Abu Ali Hasan Ibn al-Haitham -- alias Alhazen -- more than a millennium ago, turned out to... Read More

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