Thread: New obs build
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Old 21-03-2020, 10:09 AM
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The_bluester (Paul)
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Join Date: Feb 2011
Location: Kilmore, Australia
Posts: 2,376
People don't realise how flexible concrete is. There is a substantial bridge I cross regfularly and when you get stopped on it you soon realise that it is gently bouncing up and down. By the feel of the way it moves I reckon has a gentle sine wave of movement bouncing from end to end.

Last edited by The_bluester; 22-03-2020 at 09:41 AM.
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