--- android/TrainInfoService/src/dk/thoerup/traininfoservice/StationDAO.java	2011/04/04 08:59:46	1253
+++ android/TrainInfoService/src/dk/thoerup/traininfoservice/StationDAO.java	2011/04/04 10:39:12	1254
@@ -165,7 +165,10 @@
 		return result;
 	}
 
-	//the "hack" with max 0.4 degrees latitude and 0.75 degrees longitude is only valid since we only service danish trains,
+	//Latitude (horizonal), longitude(vertical) so
+	// 1 degree latitude is ~ 111320 meters, since the distance between the horizonal lines is always the same 
+	// 1 degree longitude is ~111320 meters at equator but gets shorter as we get closer to the poles.
+	// the "hack" with max 0.4 degrees latitude and 0.75 degrees longitude is only valid since we only service danish trains,
 	// in denmark 0.4dg latitude ~ 44km, 0.75dg longitude ~ 47km
 
 	// the ultra fast method  (and only slightly inaccurate as long as we only cover a limited geographically area)