ꯐꯥꯏꯜ:Chinese Gunpowder Formula.JPG
Original file (১,১৯৪ × ৮৬৪ pixels, file size: ২৮৪ KB, MIME type: image/jpeg)
| DescriptionChinese Gunpowder Formula.JPG |
The earliest known written description of the formula for gunpowder, from the Chinese Wujing Zongyao military manuscript that was compiled by 1044 during the Song Dynasty of China. It was written and compiled by the 11th century Song scholars Zeng Gongliang (曾公亮), Ding Du (丁度), and Yang Weide (楊惟德). The entry for this specific page is headed with the title "method for making the fire-chemical" ("huo yao fa"). This picture can also be found on page 119 of Joseph Needham's book Science and Civilization in China: Volume 5, Part 7. |
| Date | |
| Source | Own work (My book) |
| Author | PericlesofAthens |
| Public domainPublic domainfalsefalse |
|
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.  You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
|
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
Massimo Musso
Captions
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:09, 1 October 2021 | Error creating thumbnail: File missing | ১,১৯৪ × ৮৬৪ (২৮৪ KB) | smartcommons>Hohum | Adjust using reference image |
File usage
There are no pages that use this file.
