Description

six steel wires carrying 20 beads each for hands-on instruction in counting

Mounted in a plastic case with 4mm safety sockets

supporting both additive and subtractive color demonstrations in optical box setups

used to demonstrate standing waves in air through powder-pile node spacing measurements

Semicircular Acrylic Block, 90 x 25mm Material_Bristle six steel wires carrying 20Thicker 90 by 25mm acrylic semicircular block with polished sides, the deeper body extending the visible refraction path for ray box and Snell's law refraction studies.

Exchange/Return Notes

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Semicircular Acrylic Block, 90 x 25mm Material_Bristle six steel wires carrying 20

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