A Straight Bar Passing Through a Curved Opening at the Museum of Science in Valencia, Spain

YouTube user Shadow posted a video of an exhibit at the Museum of Science in Valencia, Spain that captures a visually engaging geometric concept, in which the angled position and movement of a straight metal bar allow it to move untouched through a parabolic opening in a solid plastic sheet.

Here’s an explanation of how it works:

via Viral Viral Videos

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