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Slinging.org Forum › General › Project Goliath - The History of The Sling › Need help for different sizes.

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Need help for different sizes. (Read 3533 times)

TOMBELAINE Funditor Offline Slinging Rocks! Posts: 839 france Gender:	Re: Need help for different sizes. Reply #15 - Feb 5^th, 2023 at 3:25am Blindsquirrel wrote on Jan 16^th, 2023 at 7:33pm: That is very interesting, that seem to line up with the weights I’m getting from dirt clay ammo I’m playing around with for similar shape and size Rock density are often between 2 and 3 grams per 1 cm3. So, the weights are relatively close.
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TOMBELAINE Funditor Offline Slinging Rocks! Posts: 839 france Gender:	Re: Need help for different sizes. Reply #16 - Feb 16^th, 2023 at 4:57am My visit to the museum is scheduled for June 15.
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joe_meadmaker Slinging.org Administrator Offline Slinging Ice is Cool! Posts: 3412 PA, USA	Re: Need help for different sizes. Reply #17 - Feb 16^th, 2023 at 2:45pm Cool! Do you know if you'll be able to take pictures?
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TOMBELAINE Funditor Offline Slinging Rocks! Posts: 839 france Gender:	Re: Need help for different sizes. Reply #18 - Feb 17^th, 2023 at 10:05am For now, I don't know. April may, I'll contact the museum to prepare my visit. I still need volunteers for the size of their hands but my project is progressing
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TOMBELAINE

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Slinging Rocks!

Posts: 839
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Re: Need help for different sizes.
Reply #19 - Apr 9^th, 2024 at 9:46am

Very late !
These bullets were made with the method between two rocks. Depending of the gesture, the result may vary a little. In addition, any defects in the pebble may not be corrected.
The diameters are not always quite round. But 11 out of 15 bullets respect this value of 1 inch or 2.5 cms. Examples : 2.4/2.5 cms, 2.5/2.5 cms, 2.2/2.5 cms and 2.0/2.7 cms for the most flat.
My photos are not very good.

2_008.JPG (222 KB | 34 )

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TOMBELAINE Funditor Offline Slinging Rocks! Posts: 839 france Gender:	Re: Need help for different sizes. Reply #20 - Apr 9^th, 2024 at 10:02am 2 examples of defects : Photo 1 : pebble defect There is a hollow in the stone near the label. Photo 2 : the bullet at the bottom right Missing tip from shock. It's the most flat, the pebble is straight on half of the bottom. This defect cannot be corrected during the polishing. Diameter : 2.0/2.7 cms.
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TOMBELAINE Funditor Offline Slinging Rocks! Posts: 839 france Gender:	Re: Need help for different sizes. Reply #21 - Apr 9^th, 2024 at 10:14am My hypothesis is that polishing stops when the diameter of the stone corresponds to the phallanx of the index. I contacted the archeological service of French Polynesia, but they didn't deign to answer. Thanks for them.
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