01 / 30Big Think≈ approximate level C10:40–0:43 .
02 / 30CrashCourse≈ approximate level B25:17–5:24
, - (%).
03 / 30TED≈ approximate level C16:35–6:39
.
04 / 30BBC Ideas≈ approximate level A20:00–0:04
.
05 / 30BBC Ideas≈ approximate level A20:38–0:42
.
06 / 30CrashCourse≈ approximate level B18:54–9:00
, , .
07 / 30Sprouts≈ approximate level A24:26–4:32
, .
08 / 30CrashCourse≈ approximate level A25:53–5:57
.
09 / 30CrashCourse≈ approximate level B12:04–2:09
, .
10 / 30TED≈ approximate level B12:09–2:13
, .
11 / 30CrashCourse≈ approximate level B11:28–1:33
’s .
12 / 30TED≈ approximate level A212:09–12:14
?
13 / 30Lex Clips≈ approximate level B17:39–7:45
, .
14 / 30Big Think≈ approximate level C11:56–2:01
, .
15 / 30BBC Ideas≈ approximate level A20:41–0:46
.
16 / 30SoulPancake≈ approximate level B20:17–0:23
, .
17 / 30BBC Ideas≈ approximate level B15:49–5:54
.
18 / 30Lex Clips≈ approximate level B11:22–1:30
, , ?
19 / 30Sprouts≈ approximate level B10:03–0:12
’s , .
20 / 30Big Think≈ approximate level B21:53–1:59
, .
21 / 30BBC Ideas≈ approximate level B10:04–0:07
: .
22 / 30CrashCourse≈ approximate level B17:52–7:58
“ ,” .
23 / 30TED-Ed≈ approximate level B20:11–0:20
, .
24 / 30PBS NewsHour≈ approximate level B12:22–2:27
, .
25 / 30CrashCourse≈ approximate level B10:13–0:21
: , .
26 / 30The Economist≈ approximate level A25:22–5:27
.
27 / 30BBC Earth≈ approximate level C11:56–2:02
, .
28 / 30Big Think≈ approximate level B13:19–3:30
.
29 / 30CrashCourse≈ approximate level B12:57–3:05
; ; .
30 / 30CrashCourse≈ approximate level B16:42–6:49
’s , .