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Illuminating the limits of the international unit of light, the candela

The candela, the international unit of light in use for almost a century, forms the basis of photometry. According to a new study, measurements derived from it systematically misjudge the brightness of colored light sources and depart markedly from human perception.

Illuminating the limits of the international unit of light, the candela

We haven't written up this one. Phys.org has the full story — the link below goes straight to it.

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