Projection Maps for Alien World Navigation

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Discussion Overview

The discussion revolves around the design and utility of navigational maps for an alien ocean world, exploring theoretical projections, navigation methods, and the implications of such a world on map-making practices. Participants consider both practical and conceptual aspects of navigation in a setting that may differ significantly from Earth.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants propose that navigational maps for an ocean world should not be divided into artificial sections like those on Earth, as this would not be necessary without continents.
  • There is a suggestion for a rigid globe that can fold into a compact shape to facilitate manual navigation without electronics.
  • Questions are raised about the necessity of using a 360-degree system for mapping, with alternative metrics proposed, such as a hundred degrees from equator to pole.
  • Some argue that if the world is entirely oceanic, the purpose of a map may be diminished, while others contend that maps would still be essential if there are islands or landmasses.
  • Participants discuss the limitations of world-scale maps for plotting great circle courses, emphasizing that local marine charts are more useful for navigation.
  • There is a contention regarding the relevance of Earth-based navigation concepts and whether they apply to a non-Earthlike ocean world.
  • Some participants express frustration over misunderstandings regarding marine navigation and the utility of different map projections.
  • A proposal for a worldline straightedge that could assist in plotting courses on a globe is mentioned as a potential tool for navigation.

Areas of Agreement / Disagreement

Participants express multiple competing views on the necessity and design of maps for an ocean world, with no consensus reached on the best approach or the implications of such a world on navigation practices.

Contextual Notes

The discussion highlights various assumptions about navigation, the nature of ocean worlds, and the limitations of existing Earth-based mapping systems, which may not be directly applicable to the proposed alien environment.

  • #31
jim mcnamara said:
Instead of maps per se, how about rhumb lines?
https://en.wikipedia.org/wiki/Rhumb_line
I am not sure what purpose these would serve.
 
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  • #32
It is an old method of navigation. Edit: if @anorlunda is a sailor he can explain their use.
 
  • #33
Is a holographic solution out of the question?
 
  • #34
BrassOctopus said:
Is a holographic solution out of the question?
Welcome to PhysicsForums. Could you post a couple links to what you are asking about? That would help us to respond to your question. Thank you. :smile:
 
  • #35
DaveC426913 was wondering "if there's a way to make a rigid globe that can fold into a compact shape."
 
  • #36
BrassOctopus said:
Is a holographic solution out of the question?
It is.
Electronic devices are strictly forbidden.
 

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