ully the power of his discovery, he saw its applicability to the navigational problem One need only to joint ly vary hypervanables to deflect time sufficiently consequently varying light lines to be able to view progressive lines Using the fact that time is discrete and electromagneli-cally hyperelated, Suag directed the development of the Suagasian limelight deflector, interfacing it with the previously developed Ixian light progressive line detector and produced the first usable Navigational machine The development of navigation to today's state is the story of modifications of this original machine The Suagasian navigator was immediately placed on all trans-light portation ships It was just as reliable as the old Guild Steersman and could even determine black-hole spot perturbations Since these machines have been m use, no accident has occurred in trans light portation as a result of machine error R L S Further references SPACING GUILD entries HOLTZMAN entries Th B L Alenga Introduction to Suagasian Hypervanables with Holtzman Applications (Richese New Caledonia State UP) NERUS, TANIDIA (dates unknown) Identified by Leto II, before his accession to the throne, as the mother of Lad) Jessica Atreides Jessica out of Tamdia Nerus by the Baron Vladimir Harkonnen This statement, now found recorded in Leto's Journals (RRC 80-A115), apparently sparked centuries of argument and analysis among generations of Atreides' scholars as evidenced by specu Idtionj> about the existence of any Tamdia Nerus m numerous and vanous materials discovered in the Rakis Finds Many scholars rejected Leto's identification of Nerus as Jessica s mother on the grounds that it was made before Leto had begun any investigation of his ancestral memories, before he became emperor and ascended the Lion Throne and before he had access to the Bene Gessent breeding records They believed his statement to be based on either whimsy or incomplete infor mation about his grandmother's heritage Oth er scholars believed the name Tamdia Nerus to be the resolution of a histoncal mystery and labored to uncover proof ot her existence and ultimate maternity of Jessica Certainly m his lifetime, Leto II was never to utter another word m public which would settle the matter on either side However through the sources available today, particularly those of the Lady Ghaiuma, Duncan Idaho 13015 and the Journals of Leto II, the Atreides scholars descending from both sides of the argument seem able to finally agree on the answer, that Jessica s real mother was the Bene Gessent Reverend Mother Gams Helen Mohiam, who used the name Tamdia Nerus when she presented her self as concubine to the Baron Vladimir Harkonnen and that any written record of Tamdia Nerus was merely part of an attempt bj the Bene Gessent to keep Mohiam's identity secret 394 NOREE One recent scholar, Gwilit Mignail, has suggested in The Nerus-Mohiam Controversy that Leto deliberately put forth the Nerus name for two reasons First, Leto may have wanted to keep the identity of Jessica's real mother from her, fednng that knowledge of Gams Helen Mohiam's maternal relationship might have been too much for Jessica to face under the very difficult circumstances of the revelation of her daughter Aba as Abomination Leto may have feared that if Jessica learned that the woman who had given her son the test of the gom jabbar, who had become the Comno Truthsayer, who had acted in loco matns to her, and who had conspired against Paul in the name of the Sisterhood was her true mother, it might have unhinged Jessica's sanity Second, Mignail suggests that Leto himself might not have been able to face the knowledge that he was not only part Har-konnen, but also was part Mohiam, and hence part Bene Gessent, part "witch " Leto, after all, was barely nine years old at the time and may have lacked a certain amount of emotional maturity Thus his very youth may have forced faun to he to himself and to his grandmother Jessica Whatever the final truth in this matter- and indeed it may never be known with any certainty-die identity of both Tamdia Nerus and/or Jessica s true mother remains a fascinating subject of conjecture by many scholars Further references.