01 / 17Practical Engineering≈ mức xấp xỉA210:54–10:59 , , (!)
02 / 17Practical Engineering≈ mức xấp xỉB21:02–1:08
, .
03 / 17Practical Engineering≈ mức xấp xỉB26:05–6:11
.
04 / 17Practical Engineering≈ mức xấp xỉA21:13–1:18
.
05 / 17TED-Ed≈ mức xấp xỉB22:19–2:30
“ ,” , .
06 / 17TED-Ed≈ mức xấp xỉB12:30–2:39
, .
07 / 17Practical Engineering≈ mức xấp xỉC12:56–3:03
.
08 / 17Tom Scott≈ mức xấp xỉB12:11–2:14
, .
09 / 17Tom Scott≈ mức xấp xỉB13:14–3:20
, .
10 / 17TED-Ed≈ mức xấp xỉB21:04–1:13
, .
11 / 17Practical Engineering≈ mức xấp xỉB25:05–5:13
, , .
12 / 17Practical Engineering≈ mức xấp xỉB14:43–4:47
.
13 / 17Tom Scott≈ mức xấp xỉA21:34–1:39
.
14 / 17Tom Scott≈ mức xấp xỉC13:19–3:30
, , , , .
15 / 17Practical Engineering≈ mức xấp xỉB27:09–7:18
, ’s .
16 / 17MKBHD≈ mức xấp xỉC11:44–1:54
, , , , .
17 / 17Practical Engineering≈ mức xấp xỉC11:16–1:29
, ’s , , , - .