01 / 21The New Yorker≈ approximate level B20:52–1:00 - .
02 / 21TED≈ approximate level A24:28–4:37
, .
03 / 21Sprouts≈ approximate level A26:04–6:11
.
04 / 21Sprouts≈ approximate level B13:39–3:49
: " ."
05 / 21Sprouts≈ approximate level B23:06–3:12
?
06 / 21CNBC Make It≈ approximate level B11:18–1:23
.
07 / 21Big Think≈ approximate level C12:04–2:11
, , , .
08 / 21Sprouts≈ approximate level A27:41–7:48
?
09 / 21Big Think≈ approximate level B21:25–1:33
, , .
10 / 21TED-Ed≈ approximate level C12:05–2:12
— .
11 / 21Sprouts≈ approximate level A21:42–1:46
.
12 / 21Big Think≈ approximate level C112:07–12:14
, 's .
13 / 21Sprouts≈ approximate level B21:00–1:08
.
14 / 21CNBC Make It≈ approximate level A21:53–1:58
.
15 / 21Sprouts≈ approximate level B21:46–1:53
, .
16 / 21WIRED≈ approximate level B14:56–5:02
.
17 / 21TED-Ed≈ approximate level A23:09–3:15
’s .
18 / 21TED-Ed≈ approximate level B24:17–4:25
, .
19 / 21CrashCourse≈ approximate level C16:10–6:16
, .
20 / 21Big Think≈ approximate level C19:24–9:34
, , , , .
21 / 21Sprouts≈ approximate level C10:13–0:25
, , .