| Chinese
texts |
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| • | The basic
optical principles of the pinhole are commented on |
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| in Chinese
texts from the 5th century B.C. |
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| • | Chinese writers
had discovered by experiments that light |
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| travels in straight
lines. |
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| • | The philosopher
Mo Ti (470-391 B.C.) was the first to record |
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| the formation
of an inverted image with a pinhole or screen. |
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| • | Mo Ti was aware
that objects reflect light in all directions, and |
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| that rays from
the top of an object, when passing through a |
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| hole, will
produce the lower part of an image. |
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