LHC Purpose
A simulated event in the CMS detector, featuring the appearance of the Higgs

The LHC is the world's largest and highest-energy particle accelerator. The collider is contained in a circular tunnel, with a circumference of 27 kilometres (17 mi), at a depth ranging from 50 to 175 metres underground.
One contemporary view on matter takes it as all scientifically observable entities whatsoever. Commonly, the definition is limited to such entities explored by physics.
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