Xanadu 2012: Longitude at sea?    
 Longitude at sea?0 comments
25 Jun 2021 @ 15:37, by Unknown



24 June 2021
Well not sure if the $2million dollar prize is still there
For solving longitude at sea.
Well I think they over thought the problem


As all you would need is the latitude...
Height of sun above horizon
The approx time in Greenwich England....
And when you left date month
A compass and a sunny day and a sundial.
The angle of the shadow of the sundial would tell you your rough longitude.

Geez how could Issac Newton miss that???

Hm

🙃

Ed/swanny



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