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"To get anywhere, or even live a long time, a man has to guess, and guess right, over and over again, without enough data for a logical answer."
- Robert Heinlein

Depilatory Soap  
  A labor-saving combination of soap and a agent that removes hair.  

I rubbed the depilatory soap over my face and rinsed it with the trickle from the fresh-water tap. Wasteful, of course, but I could afford the cost, and salt water always leaves my face itchy.
From Gravy Planet, by Frederik Pohl (w/CM Kornbluth).
Published by Galaxy in 1952
Additional resources -

Compare to the capillotomer from Beyond This Horizon (1942) by Robert Heinlein and the 'fresher from Methuselah's Children (1941) by Robert Heinlein

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Additional resources:
  More Ideas and Technology from Gravy Planet
  More Ideas and Technology by Frederik Pohl (w/CM Kornbluth)
  Tech news articles related to Gravy Planet
  Tech news articles related to works by Frederik Pohl (w/CM Kornbluth)

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