Spinning the Core 
Laboratory dynamos attempt to generate magnetic fields the way planets and stars do.
Daniel Lathrop spent seven years and $2 million building the stainless steel sphere in his laboratory. It’s two spheres, actually — nestled one within the other like a pair of Russian dolls. Only these dolls contain 12 tons of molten metal and spin independently at astonishing speeds.
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Spinning the Core

Laboratory dynamos attempt to generate magnetic fields the way planets and stars do.

Daniel Lathrop spent seven years and $2 million building the stainless steel sphere in his laboratory. It’s two spheres, actually — nestled one within the other like a pair of Russian dolls. Only these dolls contain 12 tons of molten metal and spin independently at astonishing speeds.

Continue Reading