January 1902

  • Recent Progress in Astronomy

    In 1902, three years before Einstein's Special Theory of Relativity would reshape the notions of time and space, astronomer T.J.J. See reported on binary stars, Doppler shifts, and the "luminiferous ether."

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The Horrors of Rat Hole Mining

"The river was our source of water. Now, the people won't touch it."

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What's Your Favorite Slang Word?

From "swag" to "on fleek," tweens choose.

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Cryotherapy's Dubious Appeal

James Hamblin tries a questionable medical treatment.

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Confessions of Moms Around the World

In Europe, mothers get maternity leave, discounted daycare, and flexible working hours.

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How Do Trees Know When It's Spring?

The science behind beautiful seasonal blooming

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