01 / 26CrashCourse≈ approximate level B29:02–9:09 , - .
02 / 26Lex Clips≈ approximate level A20:02–0:14
, .
03 / 26CrashCourse≈ approximate level B19:21–9:26
.
04 / 26CrashCourse≈ approximate level A210:56–11:01
, , .
05 / 26CrashCourse≈ approximate level B17:05–7:08
.
06 / 26TED-Ed≈ approximate level C11:48–1:57
, .
07 / 26CrashCourse≈ approximate level B110:09–10:20
’s , , .
08 / 26Big Think≈ approximate level A26:48–6:54
.
09 / 26CrashCourse≈ approximate level B110:27–10:34
.
10 / 26CrashCourse≈ approximate level A20:33–0:41
#: , .
11 / 26Big Think≈ approximate level C11:48–1:53
, .
12 / 26CrashCourse≈ approximate level B210:48–10:57
, , ’s , , .
13 / 26CrashCourse≈ approximate level B13:45–3:56
, .
14 / 26Big Think≈ approximate level B212:49–12:54
, , .
15 / 26Sprouts≈ approximate level B21:36–1:46
, , , , .
16 / 26Lex Clips≈ approximate level B14:15–4:18
.
17 / 26CrashCourse≈ approximate level C14:15–4:23
, .
18 / 26Sprouts≈ approximate level A25:32–5:39
, , .
19 / 26CrashCourse≈ approximate level B29:59–10:07
, .
20 / 26WIRED≈ approximate level B110:32–10:39
's .
21 / 26Vanity Fair≈ approximate level C17:38–7:49
?
22 / 26TED-Ed≈ approximate level C10:50–1:02
, , .
23 / 26CrashCourse≈ approximate level C111:04–11:15
’s - - , ’ .
24 / 26Big Think≈ approximate level C110:41–10:48
?"
25 / 26CrashCourse≈ approximate level C16:56–7:06
.
26 / 26CNBC Make It≈ approximate level C13:23–3:33
, , , .