#john christopher

Kirk's ultimate solution to the wayward computer behavior being to basically monologue "I've destroyed multiple AIs and that number could include you. just theoretically" is spot-on, too.

Centurians of Rome (1981) // dir. John Christopher

Tim Hildebrandt art for the 1988 Collier/Macmillan edition of John Christopher’s The White Mountains.

Pulp Science-Fiction Cover, January 1951

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The midshipman's workbook is a good example of the Navigation education taught in the classroom and how it is applied on an actual voyage. The following topics are covered; trigonometry, navigation, sailing on the disc, sailing on the traverse, parallel sailing, sailing, mid-latitude sailing, sailing by Mercator, determining the Latitude by observation and so on.

Cover illustration by Roger Payne