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And I hope you never leave…

A sand pendulum that creates a beautiful pattern only by its movement.

But  why does the ellipse change shape?

The pattern gets smaller because energy is not conserved (and in fact decreases) in the system. The mass in the pendulum gets smaller and the center of mass lowers as a function of time. Easy as that, an amazing pattern arises through the laws of physics.

Paul Gauguin, “Huttes Sous Les Arbres (c1887)

Photographer Andrew Griffith’s Unique Perspective on New York. @lensaloft