Checked content

File:Yuan Dynasty - waterwheels and smelting.png

Summary

Description
English: This medieval printed illustration depicts waterwheels powering the bellows of a blast furnace in creating cast iron. This illustration is taken from the 14th century treatise Nong Shu, written by Wang Zhen in 1313 AD, during the Chinese Yuan Dynasty.
Date 1313 AD
Source http://www.waterhistory.org/histories/waterwheels/
Author Wang Zhen

Licensing

Public domain This image (or other media file) is in the public domain because its copyright has expired.

This applies to Australia, the European Union and those countries with a copyright term of life of the author plus 70 years.

Dialog-warning.svg You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years, Russia has 74 years for some authors. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Côte d'Ivoire has a general copyright term of 99 years and Honduras has 75 years, but they do implement the rule of the shorter term.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.
The following pages on Schools Wikipedia link to this image (list may be incomplete):

Learn more about Schools Wikipedia

All five editions of Schools Wikipedia were compiled by SOS Childrens Villages. SOS Childrens Villages works in 133 countries and territories across the globe, helps more than 62,000 children, and reaches over 2 million people in total. There are many ways to help with SOS Childrens Villages.