01 / 12Practical Engineering≈ approximate level B20:00–0:06 , ’s .
02 / 12Practical Engineering≈ approximate level C110:09–10:16
.
03 / 12CrashCourse≈ approximate level B24:29–4:35
, ’s .
04 / 12SciShow≈ approximate level C12:30–2:38
, .
05 / 12MKBHD≈ approximate level C14:28–4:34
, - , , ?
06 / 12MKBHD≈ approximate level B24:53–5:07
- , , - , .
07 / 12Tom Scott≈ approximate level C13:01–3:09
, , .
08 / 12CrashCourse≈ approximate level C13:34–3:44
, , , .
09 / 12MKBHD≈ approximate level C18:26–8:37
, .
10 / 12Tom Scott≈ approximate level C11:34–1:44
: , , .
11 / 12Tom Scott≈ approximate level C13:13–3:17
.
12 / 12Mark Rober≈ approximate level C10:36–0:47
, .