Well finished product used for demonstrating that white light may be composed from all the spectral colours by rotation of the multi coloured disk. Mounted on a metal stand the 180mm diameter disk is driven by a belt with the help of the hand driven wheel. ( P582F )
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Some goods, because of their size, weight and supply route will incur a larger delivery cost and will have a longer lead time. Edulab will contact you to inform you of this.
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