01 / 9Big Think≈ livello approssimativoA20:19–0:22 's , .
02 / 9CrashCourse≈ livello approssimativoA20:06–0:12
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03 / 9Lex Clips≈ livello approssimativoC12:19–2:22
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04 / 9NBC News≈ livello approssimativoA20:03–0:07
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06 / 9Vanity Fair≈ livello approssimativoA20:50–0:56
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09 / 9WIRED≈ livello approssimativoB23:57–4:07
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