Aquatic life forms are the primary agent of decay - Marine borers

like the teredo worm,  for instance.  Interestingly,  at least according

to some who study the subject,  iron & steel artifacts are also rapidly

destroyed by iron-eating bacteria in the deep oceans.

The wreck of the Titanic will be reduced to a rust pile in a few hundred

years,  according to one analysis.

 ...


On 2/19/18, Allen Mulvey <allen@amulvey.com> wrote:
> We tend to think of air dried wood but water cured is much
> better. When green wood is left submerged for a long time it
> cures far better than air drying, few , if any, cracks or
> checks develop. This allows much wider boards to be cut.
>
> Even a wood kiln does not use air. It uses steam.
>
> Of  course, this is green wood, I'm not sure about wood that
> has already been air dried. Water is not necessarily the
> enemy of wood.
>
> Here is something I got from a quick Google:
> http://www.latimes.com/nation/la-na-sinker-wood-20140713-sto
> ry.html
>
> This is more common than you might think. Apparently the
> state of Oregon has outlawed the harvesting of underwater
> timber.
> https://www.npr.org/templates/story/story.php?storyId=3D126319
> 923
>
> Allen
>
> -----Original Message-----
> From: piclist-bounces@mit.edu
> [mailto:piclist-bounces@mit.edu] On Behalf Of John Gardner
> Sent: Monday, February 19, 2018 11:47 AM
> To: Microcontroller discussion list - Public.
> Subject: Re: [OT]:: Mosquito
>
> Experience suggests that any wooden ship that's actually in
> the
>
> water is a "ship of Theseus".    OTOH,  was just watching
> one of
>
> Ballard's adventures,   diving on "Sinop D",  a ~500 A.D.
> wreck in
>
> the Black Sea.
>
> Presumably due to the anoxic environment the vessel is in
> remark-
>
> able condition - You can see adze marks on the timbers...
>
>  ...
>
>
> On 2/19/18, Denny Esterline <desterline@gmail.com> wrote:
>>>
>>>
>>> Technically they are "restored", and this is true to a
> variable extent,
>>> but, if you can make a Mosquito out of a pile of decayed
> wood and metal
>>> parts that have soaked for 50+ years in a Russian swamp,
> and they have,
>>> then they could no doubt have "restored" it into anything
> they wished.
>>>
>>
>>
>> Any my philosophy professor said that the "ship of
> Theseus" was only a
>> "though experiment"....
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