- Additional Details
- Format: Color, DVD, NTSC
- Rating: Not Rated
- Number of Discs: 1
- Run Time: 50 Minutes
- Region: 1
- Aspect Ratio: 1.33:1
- Language: English
- Studio: A&E Television Networks
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?
Ancient Discoveries has built a wall and will dig a tunnel and bring it down the ancient way. Castle defenders invented listening devices to warn them of miners digging under their walls - how did these work, and what was the lethal concoction they used to smoke attacking sappers out of the tunnels?
The invention of gunpowder changed the way we mine. But who brought explosives into mines? And how did they do it?
In 1689 in Cornwall England miner Thomas Eplsey invented gunpowder mining. A technique that would eventually kill him - but that revolutionized the way we mine today.
The Vikings mined a stone called sunstone that could be used to navigate when the sun was in and near the poles - where compasses don't work.