http://www.fresnowiki.org/GeohashingRecent Changes of the page "Geohashing" on Fresno Wiki.en-us http://www.fresnowiki.org/Geohashing2009-10-06 23:24:40BradMandellcreate geohashing page for Geocaching page link <div id="content" class="wikipage content"> Differences for Geohashing<p><strong></strong></p><table> <tr> <td> <span> Deletions are marked with - . </span> </td> <td> <span> Additions are marked with +. </span> </td> </tr> <tr> <td> Line 1: </td> <td> Line 1: </td> </tr> <tr> <td> </td> <td> <span>+ '''What is Geohashing'''<br> + <br> + Geohashing, as defined in [wiki:wikipedia:xkcd] [http://www.xkcd.com/426/ comic #426], is based on a random set of geographic coordinates generated (hashed) every day for people (or other autonomous beings, I suppose) to reach (meetup). The hashed value is actually the offsets within a one degree graticule (on degree of latitude and of longitude), so meetups are possible within each graticule where the generated location is reachable - not water, mountain, etc.<br> + <br> + Due to the nature of the hashing algorithm used to generate the coordinates, it is impossible to predict them beyond the next [wiki:wikipedia:NYSE] trading day. On Saturdays around 4pm, there's an official meetup at the location specified by the coordinates.<br> + <br> + Geohashing shares a lot of similarities with ["Geocaching" geocaching], although there's no caches and the locations are one-shot sorta deals. (Computing the probability of the geohash meetup being at the same spot twice before the end of the earth is left as an exercise for the reader.)<br> + <br> + "''The Fresno, California graticule is located at latitude 36, longitude -119. It includes a whole lot of farmland, some lakes, a few foothills, and exactly half of Friant Dam.'' [[Footnote(http://wiki.xkcd.com/geohashing/Fresno%2C_California xkcd.com Geohashing Fresno, CA)]]<br> + <br> + ["Fresno"] has a fairly inactive '''[http://wiki.xkcd.com/geohashing/Main_Page Geohashing]''' community with few users listed and no activity since May 2008. But, maybe folks will get an interest again.</span> </td> </tr> </table> </div>