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Crooked Church Spire

​
original lateral edge length:
2
h
+
2
r
= 5.0992
expanded length
5.0992
number of faces
3
4
5
6
8
viewpoint
default
front
side
top
A crooked (or twisted) spire is a pyramidal tower with a twist relative to its base. This can be by design or as a result of changes over time caused by weathering [1].
This Demonstration simulates the twisting process of a pyramidal tower of fixed height caused by an expansion of its lateral edges due to faulty materials (undried wood), temperature, or humidity.
A classic example of a crooked church tower is the one in Chesterfield, Derbyshire, England [2].
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