01 / 13Practical Engineering≈ yaklaşık seviye A22:06–2:12 .
02 / 13TED-Ed≈ yaklaşık seviye B21:21–1:29
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03 / 13Practical Engineering≈ yaklaşık seviye C18:24–8:31
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04 / 13Practical Engineering≈ yaklaşık seviye B110:28–10:33
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05 / 13Practical Engineering≈ yaklaşık seviye B29:38–9:47
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06 / 13Practical Engineering≈ yaklaşık seviye B12:38–2:42
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07 / 13Practical Engineering≈ yaklaşık seviye C17:53–8:00
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08 / 13CrashCourse≈ yaklaşık seviye C17:23–7:33
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09 / 13Practical Engineering≈ yaklaşık seviye B22:31–2:35
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10 / 13Mark Rober≈ yaklaşık seviye B24:13–4:17
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11 / 13TED≈ yaklaşık seviye C18:00–8:10
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12 / 13Mark Rober≈ yaklaşık seviye B20:40–0:44
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13 / 13Practical Engineering≈ yaklaşık seviye C12:47–2:58
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