Difference between revisions of "Couch Potato Geohash"
imported>Osmie (Simplified formula & corrected odds (which were out by a factor of 1000)) |
imported>Osmie m (Fixed my own revised formula. Oops. :() |
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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: | 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 & | + | <center>P = H / ( [πR<sup>2</sup> / 180] · [sin(θ+1) - sin(θ)] )</center> |
A typical apartment dweller in [[Denver, Colorado]] (latitude 39°) has a chance of around one in 10,600,000. | A typical apartment dweller in [[Denver, Colorado]] (latitude 39°) has a chance of around one in 10,600,000. | ||
Revision as of 19:04, 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!
