Ancient discoveries : ancient mining machines /

The Romans created a hydraulic mining system that literally blew tonnes of mountain away. How was this possible? Ancient sappers dug under the walls of the mega castle Jacobs Ford in 1178 and brought a whole castle down. How?--From container.

Bibliographic Details

Corporate Authors:	Arts and Entertainment Network, History Channel (Television network), New Video Group
Other Authors:	Bernstead, Sam, Crowley, Phil
Format:	Video DVD
Language:	English
Published:	[New York] : History Channel : [2012]
Subjects:	Mining engineering > History. Mining machinery > History. Mining engineering. Mining machinery. History. Documentary television programs. Historical television programs. Nonfiction television programs.