#techie Unless your interested in maps and calculating distances..... ignore this one!
 Bit of a techie one this but I thought I'd add it in case somebody found it useful!   I've been doing a bit of work with Google Maps and  http://www.openstreetmap.org/  an open data source project which I have a lot of respect for.   I won't go into details but I've needed to calculate distances between two points based on there coordinates and some of this has to be done on a database server...... So I've put together this very quick SQL function which returns the distance between two coordinates in God's own measurement, no not cubits, miles!     set   ANSI_NULLS   ON   set   QUOTED_IDENTIFIER   ON   go     -- =============================================   -- Author:        <Christian Miles>   -- =============================================   ALTER   FUNCTION  [dbo] . [calculateDistanceBetweenCoordinates]   (       @lat1   float ,       @lon1   float , ...