3 ms·Very fun. What does y represent?by dgrin91 3y agoVery fun. What does y represent?gs17 3y agoIt should be the Lorentz factor: https://en.wikipedia.org/wiki/Lorentz_factor https://en.wikipedia.org/wiki/Lorentz_factorlayer8 3y agoLorentz factor, and it’s a gamma.