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Season 26 · Episode 9

10.021mNovember 5, 2015
Heavy-duty wheels are moulded or machined before being fitted with bearings, axles and swivelling metal frames to form industrial casters. Cakes are baked, stacked, covered and intricately decorated for weddings; precision optical and electronic components are calibrated to create terahertz spectrometers; and lightweight composite hulls, crossbeams, masts and rigging are assembled into racing catamarans.