๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

The Electric Whirl in the 19th and 21st Centuries

โœ Scribed by Daffron, John A.; Greenslade, Thomas B.


Book ID
118736143
Publisher
American Association of Physics Teachers
Year
2012
Tongue
English
Weight
834 KB
Volume
50
Category
Article
ISSN
0031-921X

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The paper describes the development of coal petrology, then organic petrology, over a period of approximately 175 years around and in Newcastle upon Tyne (England). From 1833 until 1950, the basis of study was essentially transmitted light microscopy. In this period, perhaps the supreme contribution