de bene esse: literally, of well-being, morally acceptable but subject to future validation or exception
A Manchester Museum getting a lot of publicity for a video of a statue that slowly rotates through the course of the day is on a glass shelf and only moves when people walk nearby. Read on
This raises the obvious suggestion that the rotation is simply due to
the vibration. The statue is hard uneven stone, and the glass shelf is
very hard and perfectly flat. When two hard substances are in contact
with each other, then there's not much friction because there are
limited points of contact. I suspect that the base of the statue is
uneven, which allows it to tilt and pivot very slightly from the
vertical vibration from people walking by. The shelf is very slightly
tilted towards the front, so the statue rotates until the center of
gravity is at the lowest point, and then it stops.
Firstly the issue of object moving on a glass shelf visitor induced vibration from wooden floors is a known problem in the museum industry, see:
http://www.english-heritage.org.uk/c...ration-rio.pdf
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