return to [3.18 Reference frame motion][4.3 The speed of quantum tunneling] [5.4 Relativistic kinematics][6.1 Nonmatter reference frames traveling at speed c]

Figure 4. The S’ reference frame has a velocity v in the positive X axis direction, and the S reference frame is at rest. At t=0, the S origin, S’ origin, eventon A, and eventon B all coincide. Eventon A moves on a straight path, crossing ct distance from (0,0) to point (x,y) relative to S, and eventon A moves along the Y’ axis, crossing D’ distance from (0’, 0’) to (0’,y’) relative to S’. Eventon B moves along the X’ axis, crossing D’ distance relative to S’.