A book of fables for adults and children, this time on CD. In them, the animals unravel the mysteries of the existence and functioning of the world. The audiobook brings the classical laws of physics to life in a humorous way, which even small children can understand.

Contents:
1. Hippopotamus' pleasures and sorrows (Archimedes' law) is read by Jiří Lábus
2. The Rabbit and the Laws of Survival (Thermodynamics) is read by Ivan Trojan
3. Jarmila's consultation room (Inertia) is read by Libuše Šafránková and Barbora Hrzánová
4. Tlusťoch's Attraction (Gravity) is read by Libuše Švormová and Arnošt Goldflam