In the ________ century, it was demonstrated that when we look at an object, the light pattern on the retina is upside down.
A) twentieth
B) eighteenth
C) nineteenth
D) seventeenth

Name: In the ________ century, it was demonstrated that when we look at an object, the light pattern on the retina is upside down. A) twentieth B) eighteenth C) nineteenth D) seventeenth
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In the seventeenth century, Johannes Kepler demonstrated that the image projected onto the retina is inverted.

In the ________ Century, It Was Demonstrated That When We