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 ...

1 o’clock! 2 o’clock! 3 o’clock! Narrator: You see Brain, Clock is made up of the numbers 1 through 12…a minute hand…and an hour hand. 1 hour is made up of 60 minutes, and this is shown ...