Difference between revisions of "Couch Potato Geohash"
imported>Kroot m (removed redundant 'earth' reference) |
imported>Osmie (Simplified formula & corrected odds (which were out by a factor of 1000)) |
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[[Image:Couchpotatogeohash.gif |thumb|300 px|Couch Potato Geohash Icon]] | [[Image:Couchpotatogeohash.gif |thumb|300 px|Couch Potato Geohash Icon]] | ||
| − | The following users have won the Couch Potato Geohash Achievement. This achievement can be attained only when the place where you live is exactly under the coordinates of a particular day. This is incredibly lucky, and the chance of this happening to you | + | The following users have won the Couch Potato Geohash Achievement. This achievement can be attained only when the place where you live is exactly under the coordinates of a particular day. This is incredibly lucky, and the chance of this happening to you is the area of your domicile divided by the area of the quadrangle you're in. Assuming a sphere of radius R (Earth is approximately 6,378,000m), θ = the absolute value of your graticule's latitude in degrees, and H = the size of your domicile in square metres, then the probability P is represented by the following formula: |
| − | [ | + | <center>P = H · (πR<sup>2</sup> / 180) · [sin(θ+1) - sin(θ)]</center> |
| − | A typical apartment dweller in Denver, | + | A typical apartment dweller in [[Denver, Colorado]] (latitude 39°) has a chance of around one in 10,600,000. |
If this does happen to you, you are required to throw a mad-keen party at a day's notice. | If this does happen to you, you are required to throw a mad-keen party at a day's notice. | ||
Revision as of 19:01, 26 May 2008
The following users have won the Couch Potato Geohash Achievement. This achievement can be attained only when the place where you live is exactly under the coordinates of a particular day. This is incredibly lucky, and the chance of this happening to you is the area of your domicile divided by the area of the quadrangle you're in. Assuming a sphere of radius R (Earth is approximately 6,378,000m), θ = the absolute value of your graticule's latitude in degrees, and H = the size of your domicile in square metres, then the probability P is represented by the following formula:
A typical apartment dweller in Denver, Colorado (latitude 39°) has a chance of around one in 10,600,000.
If this does happen to you, you are required to throw a mad-keen party at a day's notice.
This is one of those things that probably won't ever happen, but how cool would it be if it did?
Winners
Nobody has won this yet, be the first!
