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Mar 29, 2016
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jpmcwjr: "An off-putting point (but, but, but!): How do we know how ivory reacts to the hot needle test?"
From a Dunhill we'll never know since ivory made dots don't exist on their pipes. :D

 

lightmybriar

Lifer
Mar 11, 2014
1,315
1,840
I've got some piano key pieces I've saved for sentimental value that came from a late 1800s piano. I shall put the needle to one and see what happens!

 

georged

Lifer
Mar 7, 2013
5,956
15,959
An off-putting point (but, but, but!): How do we know how ivory reacts to the hot needle test?
I have a block of ivory. Will needle test it later today, the me. (It might take me a while to locate ten witnesses, a notary for each one, and a state official to certify the notaries, though. Olympus said they'd send a certifying official for the camera's body at a moment's notice via Gulfstream, as will the Zeiss lens people. The only thing holding me up is the certification certificate for the certification sticker on the thermometer that I'll use to measure the needle's temperature expired last month, and am waiting for the manufacturer to call me back regarding it. I imagine the certification will still be certified, but might require a certified notary to notarize it first.)

 

lightmybriar

Lifer
Mar 11, 2014
1,315
1,840
img_5230-600x450.jpg
Wow!
Forgive the photo quality. I have misplaced my lenses for my phone.
Here is a picture of the piece of ivory next to a big lighter for scale. It is less than a millimeter in thickness.
And here is the result of poking it with a red hot needle. I have pointed to the mark using another needle. It is hardly even noticeable to the naked eye.
img_5233-600x450.jpg

Very neat!

 

zack24

Lifer
May 11, 2013
1,726
2
Ivory is a weird ansd wonderful material- I still have a little Elephant I’ve had for 35 years that I can’t ship across state lines and have switched to Mammoth, which actually can be very white depending on the piece.....It’s a Mammoth pain to turn a dot that small....

 

sasquatch

Lifer
Jul 16, 2012
1,708
2,992
" I still have a little 30 year old Elephant that I can’t ship across state lines" No shit, Zack, what's it eat?

 

sasquatch

Lifer
Jul 16, 2012
1,708
2,992
So, we've proven that some pieces of celluloid burn, and that some pieces of ivory do not. If only there were a philosopher handy, we could make some headway here.

 

zack24

Lifer
May 11, 2013
1,726
2
" I still have a little 30 year old Elephant that I can’t ship across state lines" No shit, Zack, what's it eat?
Teeny, tiny Sasquatchs...:) What can I tell you- last day at the Miami Boat Show and we’ve neen drinking rum since noon...

 

georged

Lifer
Mar 7, 2013
5,956
15,959
If only there were a philosopher handy, we could make some headway here.
Just so happens I know a certified philosopher... :mrgreen:
https://dspace.ucalgary.ca/bitstream/handle/1880/41074/65022Bannard.pdf?sequence=1

 

jpmcwjr

Moderate Moderator
Staff member
May 12, 2015
26,112
29,959
Carmel Valley, CA
Does it end with "And that is how I slept with Miss Markle, thus disproving the snowball in hell theory"?
In a real vein, my asking about how ivory reacts was not to diminish or doubt the nicely done and documented experiments by George and others, and certainly not the word of Dunhill experts.

 

jguss

Lifer
Jul 7, 2013
2,622
7,056
It’s tough to look for much of anything when you’re in a straight jacket. Uh, or so I’ve heard

 

georged

Lifer
Mar 7, 2013
5,956
15,959
OK, I ran the "see if ivory burns" test as promised.
The results were not quite what I expected. Surprising, actually.
The first photo is the piece of ivory (walrus), and the needle that was used is propped beside it. The same needle used in the original test the other day, in fact. When conducting scientific research consistency is everything, right?
The second photo is what the ivory block turned into the instant the hot needle touched it. A dried fig. There was just this odd "floop" sort of sound, and there it was. The ivory was gone and in its place was a fig. No idea what's going on, here... As I said, that's not quite what I expected.
:?: :?: :?:
.
P2193956.jpg


P2193955.jpg


 

lightmybriar

Lifer
Mar 11, 2014
1,315
1,840
If you were to put the fig into a vat of ice water, do you think it would transition back into ivory?

 
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