Catalystفصل 15 جایگزینی تصویرشماره قسمت2Tattoos, Moon Mining, Muscle FibreOverviewTattoos: They are on trend but how easy are they to remove? Moon Mining: Scientists look at ways to mine the moon. Muscle fibre Fishing Line: How fishing line, a hairdryer and an electric drill make artificial muscle fibres.Air dateJuly 24, 2014Runtime (min)30
