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

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

In the _______________ Century,it Was Demonstrated That When We Look