11.30 Images: The Crab Nebula
A detailed exploration of the observations of the Crab Nebula that help astronomers to understand this remnant of a supernova explosion.
11.55 Decision-Making: The Miners' Wage Claim: 2
The miners' union held a ballot asking for support for a strike. The Government and the Coal Board were also interested in the result. What influenced the rank and file?