Edward M. Lerner

writer
Short Story

Grandpa?


Professor Thaddeus Fitch gives a practical demonstration of the grandfather paradox to his physics classes.
Imagine that I had the technology with which to visit my grandfather in his youth. Once there, what is to stop me from killing him before he’d had the opportunity to reproduce? But if I did succeed, who was it who had travelled backward. . .
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  • Science Fiction
  • Definite Time Travel
Novel

Countdown to Armageddon

  • by Edward M. Lerner
  • serialized in Jim Baen’s Universe, October 2007 to October 2008

Einstein showed that gravity is only a manifestation of mass, a curvature of the space-time continuum caused by the presense of mass. No mass, no gravity. Time is similar—it passes only in relationship to. . . stuff. Each astronomical object, each planet, has a single achievable time transfer influenced by—and that can be calculated from—net local gravitation effects. That interval depends on its own mass, its sun’s, and the galaxy’s.
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  • Science Fiction
  • Definite Time Travel
Short Story

Inside the Box


After foiling a murder attempt by his time-traveling grandson, Professor Thaddeus Fitch tries to explain Schrödinger’s cat to his class of undergraduates.
Some assert that the realm of quantum mechanics is so removed from the realm of our senses we’re unequipped to judge.
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  • Science Fiction
  • Definite Time Travel
Short Story

Time Out


Ex-felon Peter Bitner jumps at the chance for a steady job with Dr. Jonas Gorski, only to end up debating time-travel paradoxes and ethics with the disgraced scientist who keeps building bigger and bigger time machines.
Stop Hitler and what else do you alter? Millions of lives saved, sure, but billions of lives changed.
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  • Eloi Bronze Medal
  • Science Fiction
  • Definite Time Travel