We're joined this week by the eminently qualified Dr Anna Ploszajski - Young Engineer of the Year, Channel Swimmer, science explainer and graphene-hater to talk about the worst material on earth. As eclectic as ever, we uncover a World War 2 plan by the British military to create aircraft carriers out of icebergs made of ice and sawdust, the blackest substance on earth, an astonishingly petty art spat featuring Anish Kapoor and how to make a prison that Ant Man could never escape from. Follow us on Twitter: @worstfoot @bazmcstay @benvandervelde @AnnaPloszajski

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