On Tue, Apr 4, 2017 at 11:07 AM, Derick Rethans <tz@derickrethans.nl> wrote:
On Tue, 4 Apr 2017, Randal L. Schwartz wrote:
> "John" == John Haxby <john.haxby@oracle.com> writes:
John> (If you're ever near Greenwich I recommend visiting the Royal John> Observatory, taking the obligatory foot-in-both-hemispheres selfie John> and then going to look at the clocks.)
And you should also note that the location where they charge you to take that photograph is about 20 meters to the west of where it should be. At least, I presume my modern smartphone's GPS is fairly accurate, as well as having looked it up on Google Earth later.
I always thought that the meridian line as marked is 0° in *OSGB36*, not WGS84 which is what GPS uses:
http://theconversation.com/heres-why-the-greenwich-prime- meridian-is-actually-in-the-wrong-place-46302 http://metro.co.uk/2015/08/15/oops-the-greenwich-meridian- line-is-in-the-wrong-place-5344251/
George Kaplan and his colleagues went into why the "Greenwich Meridian" moved pretty exhaustively. https://www.researchgate.net/publication/282478531_Why_the_Greenwich_meridia... Regards Marshall Eubanks
cheers, Derick