The Natural Philosopher wrote:

You would be surpised at how elastic soil, and even concrete steel and
brick structures can be, let alone timber frames.

A couple of years ago I was watching the demolition of a large
Victorian building (Derby Carriage Works C Shop, for those who
knew it).

The gable ends were brickwork about 500 mm thick and 15 m high,
and the demolition excavator had to work very gingerly to bring
it down piecemeal in the right place. Simply nudging near the
apex caused the entire wall to flex to and fro quite alarmingly.
Perhaps it was largely held in place by gravity.

Chris
--
Chris J Dixon Nottingham UK


Have dancing shoes, will ceilidh.