[tz] Potted history of timekeeping from the BBC

[Pablo Sánchez]

Well... I'm close to Dublin now, will give a try on GMT... I went to Belem
do Para, Brasil, close enough to que ecuador line... It's sooooo daaaaaaamn
hot! I hope I NEVER go back there. Maybe somewhere cold (is there any high
mountain over the ecuador line?) but never back to Amazonia!

On 10 April 2017 at 17:24, Marshall Eubanks <marshall.eubanks at gmail.com>
wrote:

>
>
> On Tue, Apr 4, 2017 at 11:07 AM, Derick Rethans <tz at derickrethans.nl>
> wrote:
>
>> On Tue, 4 Apr 2017, Randal L. Schwartz wrote:
>>
>> > >>>>> "John" == John Haxby <john.haxby at 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-mer
>> idian-is-actually-in-the-wrong-place-46302
>> http://metro.co.uk/2015/08/15/oops-the-greenwich-meridian-li
>> ne-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_meridian_moved
>
> Regards
> Marshall Eubanks
>
>
>
>
>
>> cheers,
>> Derick
>
>
>


-- 





*Pablo Santiago Sánchez*
ZCE ZEND006757
phackwer at gmail.com
(61) 9843-0883
http://www.sansis.com.br
*"Pluralitas non est ponenda sine necessitate"*
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