01 / 15PBS NewsHour≈ niveau approximatifB10:36–0:46 , .
02 / 15Big Think≈ niveau approximatifA20:04–0:09
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03 / 15CNBC Make It≈ niveau approximatifB23:09–3:16
.
04 / 15Big Think≈ niveau approximatifB12:59–3:06
.
05 / 15BBC Earth≈ niveau approximatifB11:01–1:07
.
06 / 15CNBC Make It≈ niveau approximatifB19:27–9:33
, .
07 / 15WIRED≈ niveau approximatifB10:14–0:19
, , .
08 / 15PBS NewsHour≈ niveau approximatifB10:11–0:17
.
09 / 15TED-Ed≈ niveau approximatifB10:06–0:11
’s -- , .
10 / 15CNBC Make It≈ niveau approximatifC15:28–5:34
.
11 / 15PBS NewsHour≈ niveau approximatifC11:04–1:12
-- -- , -.
12 / 15The School of Life≈ niveau approximatifB22:40–2:50
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13 / 15WIRED≈ niveau approximatifB16:28–6:39
, , , , .
14 / 15The School of Life≈ niveau approximatifC12:24–2:37
; - .
15 / 15NBC News≈ niveau approximatifC10:22–0:32
.