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THE
SPIRAL WALK:
Turns: 7.5
Outer length: 268.5 m
Inner length: 85.5 m
Outer rise: 10 %
Inner rise: 33%
Average rise
per. turn: 3.74 m
HEIGHT:
Street to platform: 34.8 m
OBSERVATORY:
Height: 7 m
Radius: 3 m
STAIRS:
Wood staircase: 28 steps
Stone staircase: 31 steps
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Center
to the outside of the inner wall: 195 cm
Center to the inside of the outer wall: 610 cm
Radius: 768 cm
Some curious information:
Geografical position:
12° 34' 32,25" øst.
55° 40' 52,81" nord.
Weight: 5914 t
(specific gravity of clay + stone: app. 2 t/m³)
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THE LIBRARY HALL
Height: 3.85 m
Area: 811 m2
Volume: 3121.5 m3
Weight of the air in the library: 3.758 t |
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