Sylvester 1912 in den USA: Kinder in Pennsylvanien bereiten Steinkohle mit auf.
© Lewis Hine (1874–1940) => Zurück zum Artikel
Kinderarbeit
Bildinfo und Lizenz
Bildinfo
- Sylvester 1912 in den USA: Kinder in Pennsylvanien bereiten Steinkohle mit auf.
- Originalbeschriftung: Pennsylvania coal breakers, (Breaker Boys), 1912.
- A coal breaker is a coal processing plant which breaks coal into various useful sizes. The first function of a coal breaker is to break coal into pieces and sort these pieces into categories of nearly uniform size, a process known as breaking. The second function of a coal breaker is to remove impurities (such as slate or rock), and then grade the coal on the basis of the percent of impurities remaining. The sorting by size is particularly important for anthracite coal. In order to burn efficiently, air must flow evenly around anthracite.
Source
- Source: https://commons.wikimedia.org/wiki/File:Pennsylvania_coal_breakers,_(Breaker_Boys),_1912.jpg
- Created: December 31st, 1912
- Author: Lewis Hine (1874–1940)
License
- Public domain
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.
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Originalseite
- Das Bild ist Teil eines online-Lexikons.
- Rhetos Lernlexikon Mathematik, Aachen:
- Siehe unter => Kinderarbeit
