http://wiki.bidstonobservatory.org/api.php?action=feedcontributions&feedformat=atom&user=Black+Cat 2026-04-20T18:38:33Z User contributions MediaWiki 1.35.3 http://wiki.bidstonobservatory.org/index.php?title=Poster_Telegraph_Systems&diff=1038 2023-09-02T14:06:56Z

<p>Black Cat: Created page with &quot;Poster detailing location of signalling stations from Hollyhead to Liverpool, pictorial representation of company flags on Bidston Hill and the development of these telegraph...&quot;</p> <hr /> <div>Poster detailing location of signalling stations from Hollyhead to Liverpool, pictorial representation of company flags on Bidston Hill and the development of these telegraph systems. <br /> by 1860, flags were eventually replaced by electric telegraph and radio telegraph. <br /> <br /> [[category:activities]]</div>

Black Cat http://wiki.bidstonobservatory.org/index.php?title=Poster_Oceanographic_Institute&diff=1037 2023-09-02T13:49:14Z

<p>Black Cat: Created page with &quot;Poster detailing a brief history of oceanography at Bidston Observatory In 1919, liverpool university tidal institute was formed collecting tide data that programming tide-pr...&quot;</p> <hr /> <div>Poster detailing a brief history of oceanography at Bidston Observatory <br /> In 1919, liverpool university tidal institute was formed collecting tide data that programming tide-predicting machines used at Bidston.<br /> from 1960's onwards, these tide prediction machines were replaced by computers.<br /> <br /> Bidston Observatory tidal studies eventually expanded into oceanographics, joining the Natural Environment Research Council in 1969 and later housing the British Oceanographic Data Centre (BODC) <br /> <br /> <br /> [[category:archives]]</div>

Black Cat