01 / 17WIRED≈ approximate level B28:54–8:58 , .
02 / 17The New Yorker≈ approximate level B10:57–1:00
.
03 / 17The Economist≈ approximate level B24:06–4:17
.
04 / 17WIRED≈ approximate level A28:37–8:42
, .
05 / 17TED-Ed≈ approximate level A20:41–0:46
.
06 / 17Big Think≈ approximate level C19:17–9:23
.
07 / 17PBS NewsHour≈ approximate level B22:25–2:30
- .
08 / 17The Daily Show≈ approximate level B24:18–4:21
, .
09 / 17CrashCourse≈ approximate level C14:19–4:26
, 's .
10 / 17StoryCorps≈ approximate level A20:27–0:30
?
11 / 17The Economist≈ approximate level A20:48–0:56
, .
12 / 17BBC Earth≈ approximate level B10:17–0:21
, - .
13 / 17Lex Clips≈ approximate level C11:04–1:16
, , .
14 / 17CrashCourse≈ approximate level B14:04–4:14
, - , , .
15 / 17Big Think≈ approximate level C15:25–5:36
, - , .
16 / 17TED≈ approximate level B28:11–8:27
, , , , .
17 / 17The Economist≈ approximate level C13:23–3:32
.