👉 The term "zoetrope" is a scientific concept that refers to an apparatus used for astronomical observations. It was first described by J.J. Huygens in 1687 and later by Johann Radon in 1724. The zoetrope consists of two mirror systems mounted on the ceiling, one horizontal and one vertical. When the horizontal mirror is moved up or down a certain distance, it reflects the light from the lower part of the sky onto the upper part
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