What do we expect from a good wall? Why do we build some walls with a cavity between the bricks?
Introduced by Hugh David with Betty Henderson, Peter Hughes, Frazer Hines.
(BBC recording)
Repeated tomorrow at 2.5 p.m.
(to 11.45)
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What do we expect from a good wall? Why do we build some walls with a cavity between the bricks?
Introduced by Hugh David with Betty Henderson, Peter Hughes, Frazer Hines.
(BBC recording)
Repeated tomorrow at 2.5 p.m.
(to 11.45)