#1 2019-03-18 16:43:17

https://cruelery.com/sidepic/greenlobster.compass.png


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Auto-edited on 2020-08-02 to update URLs

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#2 2019-03-18 18:31:50

..good post....thank you..

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#3 2019-03-19 07:27:49

Thanks Choad.  An interesting topic.  Following up, I came across this related article:

https://physicstoday.scitation.org/do/1 … 830a/full/

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#4 2019-03-19 08:40:47

Navigation, escaping from here to anywhere else, was an early obsession for me as a kid of 11 and fueled entirely by the one Christmas gift my old man neglected to rewrap for some more deserving child.

I obsessed over that astrolabe a month before I cracked the code and taught myself trigonometry in the process.

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