4341gbs@houxn.UUCP (10/25/83)
There is an article in the 24 October issue of PHYSICAL REVIEW LETTERS (Vol. 51, p. 1501) by Cohen, Moses and Rosenblum on "Clock-Transport Synchronization in Noninertial Frames and Gravitational Fields" "It is shown that electromagnetic and clock-transport synchronization procedures are not necessarily equivalent. In noninertial frames and in gravitational fields both procedures can be path dependent. Even for the same path ~100 km above the Earth, the two procedures can give different errors, ~89 usec/day (clock-transport synchronization) and ~60 usec/day (electromagnetic synchronization)."