Name: Proper Assessment of the JFK Assassination Bullet Lead Evidence from Metallurgical and Statistical Perspectives (en Inglés)
Price: 26800.00 CLP
Availability: InStock
Author: Lawrence Livermore National Laboratory
ISBN: 9781502865601

portada Proper Assessment of the JFK Assassination Bullet Lead Evidence from Metallurgical and Statistical Perspectives (en Inglés)

Formato

Libro Físico

Autor

Lawrence Livermore National Laboratory

Editorial

Createspace Independent Publishing Platform

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

27.9 x 21.6 x 0.3 cm

Peso

0.15 kg.

ISBN13

9781502865601

Categorías

Espías y servicios secretos

Proper Assessment of the JFK Assassination Bullet Lead Evidence from Metallurgical and Statistical Perspectives (en Inglés)

Lawrence Livermore National Laboratory (Autor) · Createspace Independent Publishing Platform · Tapa Blanda

Libro Físico

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Origen: Estados Unidos (Costos de importación incluídos en el precio)

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Reseña del libro "Proper Assessment of the JFK Assassination Bullet Lead Evidence from Metallurgical and Statistical Perspectives (en Inglés)"

The bullet evidence in the JFK assassination investigation was reexamined from metallurgical and statistical standpoints. The questioned specimens are comprised of soft lead, possibly from full-metal-jacketed Mannlicher-Carcano, 6.5-mm ammunition. During lead refining, contaminant elements are removed to specified levels for a desired alloy or composition. Microsegregation of trace and minor elements during lead casting and processing can account for the experimental variabilities measured in various evidentiary and comparison samples by laboratory analysts. Thus, elevated concentrations of antimony and copper at crystallographic grain boundaries, the widely varying sizes of grains in Mannlicher-Carcano bullet lead, and the 5-60 mg bullet samples analyzed for assassination intelligence effectively resulted in operational sampling error for the analyses. This deficiency was not considered in the original data interpretation and resulted in an invalid conclusion in favor of the single-bullet theory of the assassination. Alternate statistical calculations, based on the historic analytical data, incorporating weighted averaging and propagation of experimental uncertainties also considerably weaken support for the single-bullet theory. In effect, this assessment of the material composition of the lead specimens from the assassination concludes that the extant evidence is consistent with any number between two and five rounds fired in Dealey Plaza during the shooting.