Contents of Einstein's E = mc2


Particle Massive/Slow between Massless/Fast
Einstein Energy
Momentum
E = p2/2m E =
[m2c4 + (cp)2]1/2
E = cp
Wigner Helicity
Spin, Gauge
S3
S1 S2
Winner's
1939 paper
Helicity
Gauge Trans.

Einstein and Wigner