mining coal underground, Tag

This is a continuation of a series of tech talks, most recently relating to coal, that have been offered on Sundays. Here, Heading Out continues to tell us about the history of coal mining. Some of these techniques are still...

Since last I wrote I have travelled to London and then up North into southern Scotland (I write this looking down at the station in Dumfries, having passed the one-time house of Scotland’s Bard)...