Robert Heinlein

variant of Robert A. Heinlein
Short Story

Life-Line

Professor Hugo Pinero builds a machine that predicts a person's moment of death without fail by scientifically probing their life line. —Michael Main
I will repeat my discovery. In simple language, I have invented a technology to tell how long a man will live. I can give you advance billing of the Angel of Death. I can tell you when the Black Camel will kneel at your door. In five minutes’ time, with my apparatus, I can tell any of you how many grains of sand are still left in your hour-glass.
Three men watch a scientist at the controls of a machine attached to another man.
  • Undetermined
  • Time Phenomena
Short Story

“—All You Zombies—”

A 25-year-old man, originally born as an orphan girl named Jane, tells his story to a 55-year-old bartender who then recruits him for a time-travel adventure. —Michael Main
When I opened you, I found a mess. I sent for the Chief of Surgery while I got the baby out, then we held a consultation with you on the table—and worked for hours to salvage what we could. You had two full sets of organs, both immature, but with the female set well enough developed for you to have a baby. They could never be any use to you again, so we took them out and rearranged things so that you can develop properly as a man.
A man wearing only a skirt stands on a spaceship while firing a ray gun upward at another ship.
  • Science Fiction
  • Definite Time Travel