Special relativity, developed by Einstein, describes how events differ according to observers in reference frames that are moving relative to each other. We report an attempt to replicate an early experiment to prove relativity, involving the study of cosmic ray muons. Cosmic ray muons travel near the speed of light (β=0.994-0.998), so they experience significant relativistic effects; they take much longer to decay than they would without time dilation. This poster describes an attempt to build a portable muon detector capable of measuring muon counts at various altitudes in order to observe the effect of time dilation on the lifetime of the muons.
Lawrence Dennis, ’15
Sponsor: Derin Sherman