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=== [[2008-05-24|Saturday, May 24, 2008]] - [[Saturday meetup]] === | === [[2008-05-24|Saturday, May 24, 2008]] - [[Saturday meetup]] === | ||
− | The coordinates for Saturday, May 24 are available. It will be the first [[Saturday meetup]] since [[Geohashing]] launched. Convenient city graticules in the U.S. include: San Antonio, Cleveland, Portland, and Baltimore. | + | The coordinates for Saturday, May 24 are available. It will be the first [[Saturday meetup]] since [[Geohashing]] launched. Convenient city graticules in the U.S. include: Madison, San Antonio, Cleveland, Portland, and Baltimore. |
=== [[2008-05-23|Friday, May 23, 2008]] === | === [[2008-05-23|Friday, May 23, 2008]] === |
Revision as of 01:02, 24 May 2008
Welcome to the Geohashing Community Wiki. Geohashing is a Spontaneous Adventure Generator, brought to you by the xkcd webcomic. If you are already familiar with GPS and xkcd, then proceed onwards!
Contents
What is this?
xkcd comic #426, published on May 21, 2008, contains an algorithm that generates random coordinates across the country1 every day.
These coordinates can be used as destinations for adventures, à la Geocaching. They can also be used for local meetups.
For a little more interactive discussion consider joining the #geohashing IRC channel on Foonetic.
1. Europe/Africa/Asia date handling still under discussion, see the talk page for discussion on the proposed standard.
How it works
Play with the coordinate calculator at http://xkcd.com/geohashing. All coordinates refer to the WGS84 datum.
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! You can use this wiki to document the daily coordinates (geohashes) you've been to.
Unless you can accurately predict the stock market, 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 (US Eastern Time), and on Friday morning you can calculate the coordinates for each day that weekend (sometimes even through Monday when there is a US holiday).
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.
Official xkcd meetups
Official xkcd meetups happen every Saturday afternoon at that day's normal geohash coordinates. All meetups start at 4:00pm (local destination time). If you go at these times, you might encounter other readers of xkcd. Bring games!
In such cases when it is unwise to attempt to access the generated coordinates, the Saturday meetup is postponed until a day when the algorithm provides a more suitable location. Alternatively, when the coordinates fall within a body of water, you can rent a boat and win the Water Geohash achievement.
Implementations
A full list of reference and practical implementations can be found on the Implementations page.
Active Graticules
See Active Graticules for a list of graticules with active users in them.
Recent/Upcoming Expeditions
The coordinates for the Saturday meetup on May 31, 2008 will be published at 9:30am US Eastern Time on Friday, May 30. See timeanddate.com for the Dow's opening time in your local time zone.
Note: Complications may arise due to time zone differences. These are being discussed on the talk page.
Monday, May 26, 2008
The coordinates for Monday, May 26 are available. They were available early as there is no Dow trading due to Memorial Day (NYSE Calendar).
Sunday, May 25, 2008
The coordinates for Sunday, May 25 are available.
Saturday, May 24, 2008 - Saturday meetup
The coordinates for Saturday, May 24 are available. It will be the first Saturday meetup since Geohashing launched. Convenient city graticules in the U.S. include: Madison, San Antonio, Cleveland, Portland, and Baltimore.
Friday, May 23, 2008
The coordinates for Friday, May 23 are available.
- 2008-05-23 Schaumburg, IL -- First reached by Virginia.
- 2008-05-23 Boston, MA -- First reached by Randall, davean, and Tesia.
Thursday, May 22, 2008
The coordinates for Thursday, May 22nd are available.
- 2008-05-22 39 -105 -- This geohash has been reached in the very active Denver graticule.
- 2008-05-22 32 -117 -- This coordinate in the San Diego, California area was reached by Somnivore.
- 2008-05-22 42 -89 -- This geohash was reached in the Stoughton, Wisconsin graticule by Alric.
- 2008-05-22 40 -96 -- This geohash was reached in the Lincoln, NE graticule by Spike and crew.
- 2008-05-22 44 -93 -- This geohash was reached in the Southern Minneapolis, MN graticule by Chris and Abi.
Older Events
See the Expedition Archives for older events.
Known Issues
Several known issues are presented at Known Issues. There is an ongoing discussion on these and other issues at Talk:Main Page.