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The Colorful Stories of 5 Obsolete Art Pigments

hyperallergic.com

from Gizmodo

All 786 Known Planets to Scale

All 786 Known Planets (as of June to Scale Planets are turning out to be so common that to show all the planets in our galaxy, this chart would have to be nested in itself—with each planet replaced by a copy of the chart—at least three levels deep. (via

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