Carla Meazza

translator
Short Story

Ripples in the Dirac Sea


A physics guy invents a time machine that can go only backward and must always return the traveler to the exact same present from which he left. —Michael Main
  1. Travel is possible only into the past.
  2. The object transported will return to exactly the time and place of departure.
  3. It is not possible to bring objects from the past to the present.
  4. Actions in the past cannot change the present.
Pen-and-ink drawing of a man holding a woman in front of him with a peace sign
                on her sleeve and a complex clockface behind.
  • Eloi Gold Medal
  • 1989 Nebula
  • Science Fiction
  • Definite Time Travel