parchment science? - “does not deteriorate with age” ?!

Steven Avery

Administrator
THE BIRTH OF THE CODEX
COLIN H. ROBERTS and T.C. SKEAT
(C) 1987 reissue [1983] The British Academy
Chapter 2
PAPYRUS AND PARCHMENT
Pages 7-8
parchment of good
[Page 08] quality is the finest writing material ever devised by man. It is immensely strong, remains flexible indefinitely under normal conditions, does not deteriorate with age,{16}
http://ccat.sas.upenn.edu/rak/courses/735/book/codex-rev1.html

Footnote

16/ Cf. Pliny, N.H. 13, 70, describing parchment as 'rei qua constat immortalitas hominum'. [[something that guarantees human immortality]]

Elliott
In The Birth of the Codex , published in 1983, his co-author, the late C. H. Roberts, and the author put forward, two alternative hypotheses to explain the extraordinary predilection of the early Christians for the codex form of book as opposed to the roll. When Colin Roberts published his magisterial monograph The Codex in 1954 there were 22 known papyrus fragments of the Gospels, ranging in date from the 2nd century to the 6th or 7th. Since then 20 more Gospel fragments have come to light, and again everyone is from a codex.
 
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Steven Avery

Administrator
https://heritagesciencejournal.springeropen.com/articles/10.1186/s40494-016-0083-4

Parchment​

Parchment is a post mortem tissue, composed mainly of collagen type I. It has been traditionally produced from animal skins, such as goat, sheep, cow, camel, etc., after a manufacturing process that varies according to geographical locations, which mainly includes processing with soaking, liming, unhairing, fleshing and drying [11]. As a result, residual quantities of chemicals, more importantly calcium carbonate (as the result of lime exposure to atmospheric carbon dioxide) are evident. Other inorganic and organic substances may be found such as alum, silicates, oils, tannins, etc., which affect the texture and hardness of the material [12, 13]. Significantly, the material that is produced has already a degree of deterioration related to the initial material in animal skin; this includes partial hydrolysis of peptide chains and gelatinization [1416].
 
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Steven Avery

Administrator
PBF

parchment science
https://www.purebibleforum.com/index.php?threads/parchment-science.3259/#post-13519




'old parchment becomes rigid and cannot be folded and unfolded'
https://www.purebibleforum.com/inde...-rigid-and-cannot-be-folded-and-unfolded.203/

The Fountain Pen Network - Sinaiticus changes ink ‘science’
https://www.purebibleforum.com/inde...etwork-sinaiticus-changes-ink-‘science’.3009/

quotes from the British Library that should really make you question Sinaiticus as 4th century - parchment "science" changes for Sinaiticus
https://www.purebibleforum.com/inde...parchment-science-changes-for-sinaiticus.723/

Sinaiticus in a scientific paper about parchment - Transformation of Collagen into Gelatine
https://www.purebibleforum.com/inde...transformation-of-collagen-into-gelatine.586/

https://www.purebibleforum.com/inde...science-requires-palaeographic-vigilance.255/


compromising parchment science and professional integrity
https://www.purebibleforum.com/inde...hment-science-and-professional-integrity.252/

https://www.purebibleforum.com/inde...tion-are-not-hands-on-manuscript-science.207/

Note : Kathryn Rudy and Dot mentioned in Facebook discussion

https://www.purebibleforum.com/inde...nts-on-research-and-condition-and-colour.191/


Jacob W. Peterson - "physical condition should play little part in dating a manuscript."
https://www.purebibleforum.com/inde...-play-little-part-in-dating-a-manuscript.685/

https://www.purebibleforum.com/index.php?threads/a-document-is-no-older-than-the-materials-used.214/

https://www.purebibleforum.com/inde...ine-age-and-authenticity-of-a-manuscript.221/


Rene Larsen

Open letter
 
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Steven Avery

Administrator
Remember Steven!
Pliny said the following for a reason!
Natural History
Book 13, Chapter 70, Section 21
"BY WHICH [i.e. PARCHMENT] THE IMMORTALITY OF MAN IS ENSURED"

The Romans knew the phenomenal durability of parchment!
Which you obviously don't...
Flexibility and age is not necessarily a problem.

What a TNC stumble-bumble!

TNC totally flunks Context 101.

The context here is papyrus:

Handbook of Greek and Latin palaeography (1903)
by Edward Maunde Thompson. 1840-1929

It is probable that papyrus was imported into Italy already manufactured; and it is doubtful whether any native plant grew in that country. Strabo says that it was found in Lake Trasimene and other lakes of Etruria; but the accuracy of this statement has been disputed, Still, it is a fact that there was a manufacture of this writing material carried on in Rome, the charta Fanniana being an instance; but it has been asserted that this industry was confined to the re-making of imported material. The more brittle condition of the Latin papyri, as compared with the Greek papyri, found at Herculaneum, has been ascribed to the detrimental effect of this re-manufacture.
 

Steven Avery

Administrator
We know, however, that papyrus was plentiful in Rome under the Empire. In fact, it was the common writing material among the Romans at that period, and became so indispensable that, on a temporary failure of the supply in the reign of Tiberius, there was danger of a popular tumult. 4 Pliny also, Nat, Hist, xiii. 11, refers to its high social value in the words: “papyri natura dicetur, cum chartae usu maxime humanitas vitae constet, certe memoria,”and again he describes it as a thing “qua constat immortalitas hominum.”
 
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