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The Dune Encyclopedia
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Dorit Pachtra was a masterful applied mathematician and an excellent experimentalist.

He spent several years on Arrakis performing on-site investigations in spite of the obvious dangers.

In 10002 AG he reported a single measurement of wind speed in excess of 1000 kilometers per hour. This is generally discredited since his instrument was out-of-certification at the time. He is also credited to have revealed the mechanism of how Drum sands of Arrakis work.

This combination of field, experimental, and theoretical research has endeared him to planetologists and all scientists.

However his brilliance and courage were not recognized until the time of Leto II Atreides.


  • "Storm Effects on Arrakis", Bulletin of Planetology, OS 1630:230
  • "Transmision of Sound in Sand under Conditions Unique to Arrakis", Bulletin of Planetology, NS 5:80-108


  • ARRAKIS, Weather phenomena, surface effects.

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