Contents contributed and discussions participated by Brooke Spencer
Invention of the Magnetic Compass - 0 views
Chinese Inventions - 1 views
Gunpowder : alchemy, bombards, and pyrotechnics : the history of the explosive that cha... - 0 views
-
Get this from a library! Gunpowder : alchemy, bombards, and pyrotechnics : the history of the explosive that changed the world. [Jack Kelly] -- Traces the history of the explosive mixture created by Chinese alchemists in the tenth century, a critical invention that has fueled innovations and shaped the technology of warfare and the evolution ...
1 - 4 of 4
Showing 20▼ items per page
Thanks! it would really help!