01 / 10Practical Engineering≈ approximate level C19:53–9:59 .
02 / 10Practical Engineering≈ approximate level B24:20–4:28
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03 / 10Practical Engineering≈ approximate level B25:23–5:29
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04 / 10BBC Earth≈ approximate level C12:10–2:14
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05 / 10MKBHD≈ approximate level C16:01–6:04
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06 / 10MKBHD≈ approximate level C16:15–6:24
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07 / 10MKBHD≈ approximate level C12:23–2:28
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08 / 10BBC Ideas≈ approximate level C13:40–3:53
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09 / 10MKBHD≈ approximate level C17:42–7:53
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10 / 10MKBHD≈ approximate level C112:51–13:06
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