Somewhere out in the cosmos, there's the physics equivalent of a unicorn. Catching even a glimpse of this oddity that looks like the isolated tip of a magnet would be like a beacon in the night, pointing the way to grand, unifying theories of absolut
Of course, physicists might simply be looking for them in all the wrong places. A new analysis by an international team of researchers has whittled down places to look by modeling magnetic monopole creation in the chaos of collisions high up in the atmosphere.
By modeling the production of magnetic monopoles in the debris of atoms blasted apart by high-speed cosmic rays, the team could confidently put some hard limits on the amount of energy it would take to make one. In deducing the equations for electromagnetism in the 19th century, Scottish mathematician James Clerk Maxwell modeled the movement of the electron's negative charge. From this, we get electric currents and the push and pull of a magnetic field.
Physics is built on the back of symmetries like this, though on its own it could just be a shadow cast by the mathematics, doing little to prove a magnetic monopole actually exists.
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