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"It's also important to vary your stimuli. I always look for new things to shock the system. Just as you make muscles grow by shocking them, you make the mind grow by shocking it."
- Bart Kosko

Dew Gatherers  
  Devices used to gather morning dew as a source of drinking water.  

Then he saw the human figures moving into the flower fields, sweeping them with strange scythe-like devices - dew gatherers. Water so precious here that even the dew must be collected.
From Dune, by Frank Herbert.
Published by Putnam in 1965
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