> Relativistic mass increase is given by M =3D M_rest /sqrt(C^2-V^2) This o= f > course returns a divide by 0 at V=3DC and hence infinite mass. Doesn't it give sqrt() a problem first by attempting to take the sqrt of 0? Seems to me there might have a kernel crash here as we do x/(sqrt(0). Does = this cause the (single) universe to implode? --=20 Scanned by iCritical. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .