I haven't worn a watch for - maybe - three or four years.
We're incredibly lucky to have OS. Many countries have no real equivalent, and either have almost non-existent mapping (controlled by the military - virtually no public access) and/or private (often ancient) mapping projects that are highly inaccurate. When I was planning for a visit to Turkey, I was rather surprised to find the best maps seem to be Soviet ... though there are countries much nearer (EU) that have incredibly poor mapping (other than motorway/main carriageway maps).
Time
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They don't show much detail of the Atlantic. Or even the North Sea.Haggis wrote:will all the road atlases and OS maps disappear?RogueMale wrote:Accurate timekeeping will certainly be needed for navigation, once satellite navigation systems fail. You need it to calculate your longitude.adam2 wrote:As others post, timekeeping will probably be less important in a lower energy future, but would still be needed to an extent.
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The Greeks put deliberate errors in their mapping to confuse the Turks, if they invade. I found out, to my cost, when a supposedly three hour walk turned into a six hour one with a half hour taxi ride back as well. They'd left a very steep, deep, impassable gully off the map which necessitated a long detour.woodpecker wrote:We're incredibly lucky to have OS. Many countries have no real equivalent, and either have almost non-existent mapping (controlled by the military - virtually no public access) and/or private (often ancient) mapping projects that are highly inaccurate. When I was planning for a visit to Turkey, I was rather surprised to find the best maps seem to be Soviet ... though there are countries much nearer (EU) that have incredibly poor mapping (other than motorway/main carriageway maps).
Action is the antidote to despair - Joan Baez
When I worked with the Royal Aerospace Establishment I helped with a quick survey of aviation navigation beacons by comparing the locations reported by a plane fitted with both the (then) new differential GPS and a state of the art radio beacon navigation system. Clever software then worked out how far from the reported position the radio beacons actually were. Most were within 100M of their reported location.
The main beacon at Heraclion (sp) in Crete was precisely one mile west of its reported position.
The main beacon at Heraclion (sp) in Crete was precisely one mile west of its reported position.