1an unfortunate trolleybus
2our antique clock
3flywheel
4roofing
5spring in an airplane
6focusing light
7induced voltage
8a constant atmosphere
9molar mumble
10don’t lean out of the windows
11a healthy mind in a healthy body
12insidiously smoky
13an electron source
14is it cold outside?
15battering ram
16night-time thermodynamics lesson
17moving pulleys on a wagon
18beware of the fountain
19Beryllgläser
20filling the bathtub
21Lipno and relativity
22the intersections of Lissajous curves
23conductor in a hurry
24height does not matter
25the hollow Earth has many variants
26an oscillating pulley
27one increased, the other increased too
28Doppler on his way home
29psoon
30on a beach
31an oscillating hoop reloaded
32finite circuit
33an inclined roof
34ommatidium
35thermodynamic cannon
36center of gravity of a snail
37very thirsty
38rotary capacitor
39inevitable fall
40life is short
41radiant
42anti-reflective glasses
43Dano is flying to an exoplanet
44platform 9 and 3/4
45a ride on the exponential
46carousel ride
47catapult
48too many cubes
49we work by pulling
50snowball to a window
51a bottle on a swing
52washbasin
53bottle on a swing reloaded
54minimisation of acceleration
55M.1: the boat
56M.2: the boat reloaded
57M.3: the boat revolutions
58M.4: the boat resurrections
59E.1: discharging a capacitor
60E.2: conductive chewing gum
61E.3: cheap voltmeter
62E.4: coil on a base
63X.1: I’ll pull her down with me
64X.2: to the bottom of the dam
65X.3: an unknown ball in an unknown fluid
66X.4: attractive