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Welcome to the '''Geohashing Community Wiki'''. [[Geohashing]] is a ''Spontaneous Adventure Generator'', brought to you by the [[xkcd]] webcomic. | Welcome to the '''Geohashing Community Wiki'''. [[Geohashing]] is a ''Spontaneous Adventure Generator'', brought to you by the [[xkcd]] webcomic. | ||
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[[Image:Coordinates.png|thumb|400px|[[The Algorithm]], as shown in [[xkcd]] [http://www.xkcd.com/426/ comic #426].]] | [[Image:Coordinates.png|thumb|400px|[[The Algorithm]], as shown in [[xkcd]] [http://www.xkcd.com/426/ comic #426].]] | ||
| − | [[xkcd]] [http://www.xkcd.com/426/ comic #426], published on 21 May 2008, contains an [[algorithm]] that generates random coordinates around the world every day. | + | [[xkcd]] [http://www.xkcd.com/426/ comic #426], published on 21 May 2008, contains an [[algorithm]] that generates random coordinates around the world every day. Every day, the [[algorithm]] generates a new set of coordinates for each 1°×1° latitude/longitude zone (known as a [[graticule]]) in the world. They are randomly placed -- they could be in the forest, in a city, on a mountain, or even [[Water Geohash | in the middle of a lake]]! Everyone in a given region gets the same set of coordinates. |
| − | + | As such, these coordinates can be used as destinations for adventures, ''à la'' [[wikipedia:Geocaching|Geocaching]], or for local meetups. After the fun, why not document your [[Expedition]]? The rest of us would love to read your story, see your photos, and cheer your success (or commiserate with your failure). You can use this wiki to document the daily coordinates (geohashes) you’ve been to. | |
| − | + | Play with the coordinate calculator at [http://xkcd.com/geohashing http://xkcd.com/geohashing]. All coordinates refer to the [[wikipedia:WGS84|WGS84]] datum. | |
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Unless you can accurately predict the [[DJIA|stock market]] down to the penny, you can't figure out what the coordinates will be ahead of time. You can first calculate a weekday’s coordinates at about 9:30am [[ET]], and on Friday you can calculate the coordinates for each day that weekend. | Unless you can accurately predict the [[DJIA|stock market]] down to the penny, you can't figure out what the coordinates will be ahead of time. You can first calculate a weekday’s coordinates at about 9:30am [[ET]], and on Friday you can calculate the coordinates for each day that weekend. | ||
When visiting geohash locations, please [[geotrashing|respect the area]] you are visiting. Absolutely do not litter or otherwise disturb the natural integrity of the area. However, if possible, creating some kind of a marker out of nearby materials (i.e. cairn of stones, blair-witch-style ‘stick figures’, etc.) is encouraged. | When visiting geohash locations, please [[geotrashing|respect the area]] you are visiting. Absolutely do not litter or otherwise disturb the natural integrity of the area. However, if possible, creating some kind of a marker out of nearby materials (i.e. cairn of stones, blair-witch-style ‘stick figures’, etc.) is encouraged. | ||
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{{disclaimer}} | {{disclaimer}} | ||
| + | For more information, see the [[FAQ | frequently asked questions]]. Also consider joining [irc://irc.foonetic.net/geohashing the #geohashing IRC channel] on Foonetic. | ||
| − | + | __TOC__ | |
| + | [[Image:Portland Sample Coord.png|thumb|250 px|Use [http://xkcd.com/geohashing this tool] to find geohashing coordinates for a given area and date.]] | ||
=== Official xkcd meetups === | === Official xkcd meetups === | ||
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=== Achievements === | === Achievements === | ||
Sometimes you need to go above and beyond (or, perhaps, beneath and short of) the call of the GPS receiver to get to your hash. The [[Achievements]] page lists recognized wins (and fails) of geohashing and corresponding awards. | Sometimes you need to go above and beyond (or, perhaps, beneath and short of) the call of the GPS receiver to get to your hash. The [[Achievements]] page lists recognized wins (and fails) of geohashing and corresponding awards. | ||
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== Recent and Upcoming Coordinates == | == Recent and Upcoming Coordinates == | ||
Revision as of 13:03, 21 January 2009
Welcome to the Geohashing Community Wiki. Geohashing is a Spontaneous Adventure Generator, brought to you by the xkcd webcomic.
xkcd comic #426, published on 21 May 2008, contains an algorithm that generates random coordinates around the world every day. Every day, the algorithm generates a new set of coordinates for each 1°×1° latitude/longitude zone (known as a graticule) in the world. They are randomly placed -- they could be in the forest, in a city, on a mountain, or even in the middle of a lake! Everyone in a given region gets the same set of coordinates.
As such, these coordinates can be used as destinations for adventures, à la Geocaching, or for local meetups. After the fun, why not document your Expedition? The rest of us would love to read your story, see your photos, and cheer your success (or commiserate with your failure). You can use this wiki to document the daily coordinates (geohashes) you’ve been to.
Play with the coordinate calculator at http://xkcd.com/geohashing. All coordinates refer to the WGS84 datum.
Unless you can accurately predict the stock market down to the penny, you can't figure out what the coordinates will be ahead of time. You can first calculate a weekday’s coordinates at about 9:30am ET, and on Friday you can calculate the coordinates for each day that weekend.
When visiting geohash locations, please respect the area you are visiting. Absolutely do not litter or otherwise disturb the natural integrity of the area. However, if possible, creating some kind of a marker out of nearby materials (i.e. cairn of stones, blair-witch-style ‘stick figures’, etc.) is encouraged.
For more information, see the frequently asked questions. Also consider joining the #geohashing IRC channel on Foonetic.
Contents
Official xkcd meetups
Based on the title text from the comic that established geohashing, the "official" meetup day was interpreted as being Saturday; that is, the day one would have the best chance of meeting others -- see also Mouseover Day. Additionally it was decided through convention that a good meeting time would be 16:00 local time (4:00 P.M.)¹
However, neither of these are hard rules, and they were formulated at a very different early stage in the sport's history. Nowadays and for quite awhile actually, any date or time can be good (or bad, depending on how many other hashers are near you) for meeting up, especially if prearranged. Note that this only applies to that day’s normal local geohash or globalhash coordinates, if you try to go to an alternate location without telling anyone else, it's highly unlikely you'd meet up with a hasher there (obviously).
¹Or earlier if that would be too close to sunset during the winter, or other quirks of temporal tradition; see your local graticule page for consensus there.
Really Cool Expeditions
Sometimes to know how seriously cool a geohashing expedition was, a picture is insufficient. You may need a thousand words. Please contribute links to the Hall of Amazingness of “you have got to see this!” way cool expeditions that we might otherwise not hear about.
| “ | Then I realised, despite all my whining, my pain and exhaustion, my total lack of any positive thoughts at all, I was enjoying myself. I was having one of the most exhilarating times of my life. I was exploring a place that no one had ever been, seeing things no one had ever seen, pushing my body to its limit for a ridiculously pointless goal and loving every second of it.
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” |
| “ | There's probably only one IRC channel in the world where you can complain about the stupid forest not being cold enough at -9°C and everyone understands and agrees without raising an eyebrow.
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” |
Achievements
Sometimes you need to go above and beyond (or, perhaps, beneath and short of) the call of the GPS receiver to get to your hash. The Achievements page lists recognized wins (and fails) of geohashing and corresponding awards.
Recent and Upcoming Coordinates
The coordinates for the Saturday meetups on 4 May 2024 are now available. The coordinates for the next Saturday meetups, scheduled for 11 May 2024, will be based on the Dow's opening price published at 09:30 EDT (13:30 UTC) on Friday 10 May. See timeanddate.com to convert this time to your local time zone.
- Coordinates: Mon 6 May* | Sun 5 May | Sat 4 May | Fri 3 May | Thu 2 May | Wed 1 May | Tue 30 Apr | Mon 29 Apr
* Only known for regions east of 30W longitude. Coordinates for regions to the west announced 13:30 UTC, 6 May. - View expedition archives for: May 2024 | April 2024 | March 2024 | More...
- Refresh the cache
Gallery of Recent Expeditions
The gallery for each day is added to this page automatically, but pictures are selected to the gallery by us. Any geohasher is welcome to add a picture from that day. Just add your image name in the list at the “add yours” link. If the gallery hasn't been started yet, copy the format from the previous day, or read the how-to.
