Single-pole magnet emerges in frozen concoction

Experiment simulates long-sought magnetic particle

By Andrew Grant, 12:31 PM February 4, 2014

Somewhere lurking in the universe, most physicists agree, are minuscule magnets with just one pole — a north or a south, but not both. Scientists haven’t spotted any yet, but a new experiment offers an unprecedented glimpse at what these elusive magnetic particles should look like.

“It provides a window into the physics of the particle without having the particle itself in front of you,” says David Hall, the physicist at Amherst College in Massachusetts who led the research.

Magnets seem to com...

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