Light in a different light

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Things seen within a larger angle appear larger, things seen with a smaller angle appear smaller

Slide 11

Euclidian rays

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Euclidian rays

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Diocles’ rays

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Archimedes’ mirror

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Hero’s rays

Slide 16

Ptomely

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End of visual rays

“There is no vision unless something comes from the visible object to the eye, whether of not anything goes out”

Slide 18

Light and eyes

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Lenses to help the eye

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Lenses to help the eye

Slide 21

Lenses to help the eye

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Lenses to help the eye

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Lenses to help the eye

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Lenses to help the eye