This simple experimental setup can disprove Einstein relativity, by determining the temporal order of positron creation and annihilation in a gamma photon interaction with a metal atom nucleus in the foil target. Only Osiak relativity predicts that positrons travel backwards in time from their creation event when a gamma photon strikes the metal foil.
Because a positron is a stable particle, the run-out can be arbitrarily long, allowing the positron annihilation to precede the electron detection by an arbitrarily large time interval.
Low cost experiment to determine the correct relativistic energy formula
Review and discussion with Grok
