February 14th 08, 01:49 PM
posted to uk.transport.london
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external usenet poster
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First recorded activity at LondonBanter: Jul 2003
Posts: 2,577
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M25 Speed cameras
R.C. Payne wrote:
Well whenever I am using GPS these days [1], I can find my altitude by
reference to my watch and a copy of Reed's Almanac.
Remind me again...how does that work?
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