Teltowkanal

The coordinates N 52 26.000, E 13 21.000 are arbitrarily chosen - in order to obtain the final coordinates, you must solve three riddles (a) indoor. If you can't solve the riddles, you will get a second chance: You will have to make a lap of honour and to do an extra exercise (b) outdoor as a substitute.

1. a) On the waterfront you will find the building where the command was issued to release the first atomic bomb.
   The crossfoot of the house number of this building is = A
   
   b) Teltow Channel starts at Grünau Bridge (N 52 25.692, E 13 34.365). There you will look for the following thing:
   
   
   
   The rescue device or rather the location of the rescue device has been marked by an index of rescue device location in the rescue device location format ??/??
   The first two digits are = D
   A = D / 7
    
2. a) At N 52 24.063, E 13 14.135 you will see a property which had been located within the scope of the contest of the National Front „Beautification of our towns and communes - be a good sport" ("schöner unsere Städte und Gemeinden - Mach mit") in honour of the umpteenth party conference of SED.
   The umpteenth is = B
   
   b) More or less in the midst of Teltow Channel, there is a small anchorage (N 52 26.608, E 13 19.561). Proceed there directly.
   
   
   
   Over the way you can see Steglitz harbour. On the small spit which separes the harbour basin from the channel, there are two signs: One of them welcomes you at MRC Berlin (Motor speedboat club Berlin, registered association - the speed limit on Teltow Channel is 8 km/h by the way), while the other sign admonishes of a danger.
   Of which perfidious danger does the sign admonish?
   Number of characters of the danger (German word) = E
   B = E - 10
    
3. a) The year is 1945 A.C. All of Germany is occupied... All? Not quite! On July 25th, there is suddenly some dissent on this issue: Some people say that Teltow Channel is the green line. Others hold the opinion that a railway line constitutes the frontier. The strange situation that a place in the middle of Germany remains unoccupied lasts ten weeks and results in disastrous starvation.
   Which is the name of this place? Number of characters = C
   
   b) Anywhere along the south bank between park bridge (N 52 24.503, E 13 06.059) and steam engine house (N 52 24.520, E 13 05.783), the official kilometrage of Teltow Channel starts. Search for the sign which marks the source of Teltow Channel, get directly next to it and carry out a bearing of 350 metres in direction 255°.
   
   
   
   At Park Babelsberg there are many beautiful and interesting things to discover, but first you must search for a clapped-out bicycle-rack.
   For how many bikes this rack has been built? Number of bikes which slot in = F
   C = F - 8

Well, are you ready for the final? Now push off:

N 52 26.xxx, E 13 21.yyy
xxx = A²+((A+B)*(A+C))+((A+B)*(B+C))+((A+C)*(B+C))
yyy = A²+(A²*B*C)+(A*B*C)+C²

GeoChecker

The cache can most easily be found at night with a pocket lamp. At a pinch, the search will do by day, but maybe it takes more time. Attention! The cache contains strong magnets, so be careful with metal pieces, EC cards and credit cards, mechanical watches, hearing aids, heart pacemakers etc.!