Surely it's rung when it's struck. Even if no one hears it. Rather like the tree falling in the forest.
And if so, your noise cancelling technology is irrelevant.
Sent from my iPhone
> On 23 Dec 2014, at 21:31, Hilary Stuart-Williams <[log in to unmask]> wrote:
> Hmmm ... I'd raise a couple of points with that. The first is: when is a
> bell rung? Is it rung when it is struck or when you hear the sound? And
> related to that, I CAN actually un-ring it. Because the sound takes a
> finite amount of time to travel, I can sense it between you and the source
> and generate an opposite signal that cancels it out before you hear it.
> There are a lot of technologies that use that method for sound deadening.
> And please note that I said Method not Methodology.
> Happy Christmas eve to all.
>> On 24 December 2014 at 00:19, Orion <[log in to unmask]> wrote:
>> Another way of looking at it may be that the present is a point in time.
>> has no length. It is a point that moves through time and we are always in
>> the present. We cannot affect the past and we never are in the future.
>> It's been said that we cannot un ring a bell. But we also cannot know if
>> the bell will ring until it has rung. At present we cannot be sure.
>> Just a thought,
>> At 09:04 AM 12/23/2014 -0000, Dave Hayward wrote:
>>> To add to the seasonal friviality,
>>> In the Army we were always taught it was either 23.59 or 00.01hrs, =
>>> midnight does not exist!
>>> I suppose it is much like what is defined as 'the present' - I would =
>>> suggest that does not exist also, can you measure 'the present' in time? =
>>> Everything is in the past or in the future!=20
>>> Anyhow, to leave you with that contemplative thought, I hope you all =
>>> have a good festive season and may archaeology flourish in 2015.
>>> Dave Hayward
> Dr Hilary Stuart-Williams
> Research Officer - Stable Isotopes
> The Research School of Biology
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