Projection Maps for Alien World Navigation

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SUMMARY

The discussion centers on the challenges of creating navigational maps for an ocean world, emphasizing the need for projections that facilitate straightforward measurements and calculations for navigation. Participants argue against traditional Earth-based map projections, which often distort distances and directions, making them unsuitable for plotting courses over vast oceanic distances. The conversation explores the potential of using a collapsible globe or a Gnomonic projection for navigation, while questioning the necessity of maps in a world dominated by water. Ultimately, the consensus is that a new mapping system must prioritize the unique conditions of an ocean world.

PREREQUISITES
  • Understanding of map projections, particularly Gnomonic projections
  • Familiarity with marine navigation techniques and tools, such as astrolabes
  • Knowledge of spherical coordinates and great circle navigation
  • Concept of collapsible globes and their application in navigation
NEXT STEPS
  • Research the properties and applications of Gnomonic projections in navigation
  • Explore the design and functionality of collapsible globes for practical use
  • Study ancient navigation techniques, such as those used by Polynesians
  • Investigate the mathematical implications of navigation on non-Earth-like worlds
USEFUL FOR

Science fiction writers, cartographers, marine navigators, and anyone interested in the complexities of navigation in non-traditional environments.

  • #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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