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it is normal and safe
3 aligned Bexleys create uniform lighting
laser engraving
you don't need additional wrapping — just add a ribbon and a card
pendule sable de foucault wheel it is normal and safeThe Sand Foucault Pendulum a metal pendulum oscillating over a basin of fine sand, on an ABS body. Dimensions: 39 16 14 cm. Traces complex and unique patterns with each oscillation variable curve, amplitude, speed, and direction of rotation. An exceptional decorative object at the intersection of science and art. Unique patterns with each oscillation The pendulum traces complex curves in the sand each figure is different depending on the amplitude,