HIROSHIMA--Passed down from his grandfather, a U.S.-made wooden clock that hangs on a living room wall at Eiji Koizumi’s home here has stood the test of time and an atomic bomb blast. The ...

The clock hands are set by the Bulletin of the Atomic Scientists, a group formed by Manhattan Project scientists at the University of Chicago who helped build the atomic bomb but protested using it ...

NAGASAKI--A badly damaged wall clock that stopped at 11:02 a.m.--the moment the atomic bomb exploded over Nagasaki on Aug. 9, 1945--has suffered from the ravages of time at a museum here.