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SELF-MADE

(The translation to English is maded by pc-program and by adding few corrects with my "know-how" :-) )

How have I built my wall sundial ?

1. Location: Location coordinates with GPS ascertain. Shadow measurements during a sunny day (at any time or exactly at the time of the solar highest level) to the inquiry of the wall divergence. 2. Pointer sail: For the pointer sail calculate, draw, on cardboard transfer and on the wall test before one it massively makes. 3. Mounting: The pointer sail is to be straightened with one edge perpendicularly on the wall and to finish the mounting with two screws. 4. Marking of hours: During a sunny day one marks the desired points of hours (CET or AST/ L.A.T) by means of the precise home clock taking into account the location and the equation of time . 5. Design: After own taste and talent.