Spent a day getting some great iron ore train intel from @lindypyrah recently. Google map of Mauritania looks very empty. Wonder if train based astronavigation might be possible? Rail first?pic.twitter.com/gi1kIDEpL7
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Thanks - that's a new one on me - will check that out! Surely its data comes from same source as Google though?
It's simple, yet accurate — converting complex GPS coordinates into unique 3 word addresses. It means anyone can talk about anywhere, easily, with 3 simple words. And as @lindypyrah mentioned it's more precise (to a 3m x 3m square).