Hi there,
forwarding this to ye OSMers in case you are interested. The expected audience is hillwalkers, but it sounds interesting to others too. I'll be in France on that day, otherwise I would have been tempted. ---------- Forwarded message ---------- From: Tyndall Mountain Club <tyndallmtc...@gmail.com> Date: 15 November 2013 16:27 Subject: Fwd: [Walkers Association of Ireland newsletter] This Day Next Week! To: ---------- Forwarded message ---------- From: Walkers Association of Ireland <websitecont...@walkersassociation.ie> Date: 14 November 2013 23:45 Subject: [Walkers Association of Ireland newsletter] This Day Next Week! To: tyndallmtc...@gmail.com This Day Next Week! *WAI Winter Talks Series 2013 / 2014* *THIS DAY NEXT WEEK! * *Wednesday 20th November 2013, 8pm to about 9:30.* *A talk about the "Original Survey and Modern Mapping Methods" will be given by Dominic Cronin.* <http://www.walkersassociation.ie/node/37073> The systematic mapping of Ireland started with the Ordnance Survey from 1829 onwards. To create a map for which all pieces fitted together it was first necessary to measure the earth. The Victorian way of doing this was to measure one length accurately for a baseline and then measure angles to the ends of this to mountaintops and further mountaintops. From this primary triangulation further work led to measuring fields, houses, roads and all other features. At the end of the process there was the creation of the 25 and 6 inch to the mile maps. In contrast modern mapping uses a variety of techniques some based on airphotography, GPS and Electronic Distance Measurement. . . . . The below photo is of a three foot wide theodolite, weighing some 200 pounds, which was lugged to the top of each of the mountains of the primary triangulation! <http://www.walkersassociation.ie/node/37082> Following the talk there will be Q&A and an opportunity to meet others. Venue for Talks : The Lansdowne Hotel (Held in The Raglan Room, downstairs behind The Den Bar) 27-29 Pembroke Road, Ballsbridge, Dn 4 More details including directions at: THE LANSDOWNE HOTEL <http://www.lansdownehotel.ie/> . . . With bar facilities at hand and excellent food available from the bar . . . a great evening is promised for all! ALL ARE WELCOME . . . . ! ! ! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *Future Events !!!* *Wayfarers / WAI Annual Pub Quiz!* *29th January 2014 - Venue : The Teacher's Club, Parnell Square, Dublin 1* *. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * *MountainViews / WAI Annual Gala Evening!* *21st February 2014 - Venue : The Lansdowne Hotel, Dublin 4* *. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * *WAI Photography Workshop : May 2014!* *WAI GPS Course : May 2014!* *. . . . and of course further entertaining Spring Talks!* Full Details to Follow. _______________________________________________ Talk-ie mailing list Talk-ie@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-ie
