1underground
2passing trains
3let’s play a game
4Keep pulling or I’ll whip you!
5Theophist temperature
6stairs
7hockey-football problem
8resistive block
9queen’s justice
10scuba diver
11fifty
12Watch out for the turn!
13Planck linear density
14drop velocity
15giga-cave
16compound bow or semiautomatic pistol?
17twice as stiff spring
18a warm-up hurricane
19rain
20throwing balls
21shadow
22elevator acceleration
23Kevin the Cube
24chained
25cork problem
26olive one
27Paťo is doing sports
28energetic pendulum
29Einstein with Cherenkov
30two-state problem
31spacey
32one-third train
33marble on a spiral
34olive two
35Dan’s eggs
36a motivational capacitor
37a calm place
38finally a complex infinite circuit
39vertical shelf
40olive three
41elastic loop
42astronaut training
43exotic field
44identifying a rod
45doublets
46stellar sail
47throw over a cylinder
48evil spring
49M.1: Dyson
50M.2: Dyson Reloaded
51M.3: Dyson Reloaded Reloaded
52M.4: Dyson Reloaded3
53E.1: oh, these batteries
54E.2: inner resistance
55E.3: solar panel incident
56E.4: transforming
57X.1: purely fractal
58X.2: just fractal
59X.3: quite fractal
60X.4: very fractal