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The ocean’s blue does not come merely from reflecting the sky. Water preferentially absorbs red wavelengths, while blue light penetrates farther and scatters back toward our eyes—giving deep, clear water its characteristic colour.
6+ day, 5+ hour ago (813+ words) Selective absorption gives clear water its blue tint. Scattering, sky reflections, suspended material and shallow seabeds help determine the color we actually see. By The Long View · Edited by Lachlan Brown Published September 8, 2026 · How we edit The sea can reflect…...
Peter Mark Roget began privately arranging words by meaning in 1805, while still a young physician. After leaving medical practice at 61, he spent twelve years turning that lifelong habit into a classification of the English language; he published it at 73, and Roget’s Thesaurus has never gone out of print in more than 170 years.
1+ week, 1+ day ago (1657+ words) Roget's famous reference work grew from a private catalogue begun in 1805. Its long development, idea-first structure and continuing revisions make the real story richer than a simple retirement tale. By The Long View · Edited by Lachlan Brown Published September 5, 2026 · How…...