Metal Nail Files, Birch Bark Canoes, Cruiser Boat Hardtops, High-Voltage Circuit Breakers

13th October 2016 21 mins Season 28 Episode 7

Steel blanks are cut, textured, hardened and finished to produce durable metal nail files. Sheets of birch bark are fitted around a wooden framework and reinforced with ribs to create traditional canoes; composite materials are moulded and finished into hardtops for cruiser boats; and insulated contacts and interruption mechanisms are assembled into high-voltage circuit breakers.

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Season 28 · Episode 8

Macarons, Pine Needle Baskets, Micrometers

Almond-based meringue batter is piped, rested and baked into smooth macaron shells before pairs are joined with flavoured fillings. Bundles of long pine needles are coiled and stitched into decorative baskets, while precision-machined frames, spindles and calibrated screw mechanisms are assembled into micrometers capable of measuring extremely small dimensions.

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