NOT WHAT BUT WHY???

[dugupfinds]

Yesterday I found this Nail.

Made from a sheet of copper.

Its 33mm high & the head is cica 14mm.

Questions:
1. Why spend so much time hammering a sheet of copper?
2. Why use Copper?
3. What date is it?

Good luck.

 

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[savant365]

Just doing a google search for "copper nail" brought up an interesting possibility. Supposedly driving a copper nail into a tree will kill it.


Date: Tue Aug 25 14:02:58 1998
Posted By: Dr. Elson Silva, , Soil Scientist, Ph. D., Embrapa
Area of science: Agricultural Sciences
ID: 904063988.Ag
--------------------------------------------------------------------------------
Message:


Yes, if the nail is big enough to harm the base of the tree. It can open an
entry for infection and disease. You also need to consider how big is the
nail and the tree. Driving a copper nail has physical, chemical, and
biological actions playing together. If the tree dies, it will not be easy
to know precisely what the main cause was acting. Copper as a metallic form
is not harmfull to tree nutrition. It needs to oxidize, to solubilize and
then be absorbed. Absorption of copper at the bark level may not occur, while
high levels of copper ion in the soil rooting system may lead to toxicity. Many
species of trees also will respond differently to this stress related to
nails in their bases. In biology we do not play yes/no answer!

 

[dugupfinds]

Just doing a google search for "copper nail" brought up an interesting possibility. Supposedly driving a copper nail into a tree will kill it.


Date: Tue Aug 25 14:02:58 1998
Posted By: Dr. Elson Silva, , Soil Scientist, Ph. D., Embrapa
Area of science: Agricultural Sciences
ID: 904063988.Ag
--------------------------------------------------------------------------------
Message:


Yes, if the nail is big enough to harm the base of the tree. It can open an
entry for infection and disease. You also need to consider how big is the
nail and the tree. Driving a copper nail has physical, chemical, and
biological actions playing together. If the tree dies, it will not be easy
to know precisely what the main cause was acting. Copper as a metallic form
is not harmfull to tree nutrition. It needs to oxidize, to solubilize and
then be absorbed. Absorption of copper at the bark level may not occur, while
high levels of copper ion in the soil rooting system may lead to toxicity. Many
species of trees also will respond differently to this stress related to
nails in their bases. In biology we do not play yes/no answer!

Thanks, sounds possible.

I like your signature. Although I always said " A bad day fishing is better than a GOOD day working".

 

[DCMatt]

I would guess this is enterprising and industrious improvisation. Any chance there's an iron nail inside it?

Copper nails were/are used to attach copper sheathing or flashing (other metals react badly with copper). If the flashing or rain spout is hanging down on you r house and you don't have a copper nail, make one.

Copper sheathing was used on ships in the mid 1700's. Probably before that and up through modern times on houses.

Just my guess...

DCMatt

 

[romeo-1]

LOL...I didn't even see this post when I posted mine...great minds think alike I guess!

 

[Michelle]

WOW , I HAVE DONE LEARNED SOMETHING ELSE.....LOL, GREAT.