[math-fun] fast spinning stars

H.Baker: http://www.edhat.com/site/tidbit.cfm?nid=75955 star spinning at 600 km/sec --I point out millisecond pulsars (neutron stars spun up via infalling gas) are known spinning as fast as 716 rev/second, including ones that have planets. Assuming equatorial diameter of 24km this is 54000 km/sec = 0.18c.