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Photos and Videos

images formed by convex and concave lenses
common lenses
curve generator
polarized lenses
lens aberrations
double convex lens
convex and concave lenses: bending light
focal length of a lens
Gauss theory of lenses
magnification
How lenses and mirrors affect light and vision
Understand how a pinhole focuses light and why lenses are better than pinholes
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Key People

Alvan Graham Clark
American astronomer
Giuseppe Campani
Italian inventor
John Henry Dallmeyer
British manufacturer