- a1 Frontcover
- a2 Do rays of cold exist?
- a3 How does a microscope magnify?
- a4 Is it easy to smash an eggshell?
- a5 Improved funnel
- a6 Center hole in vinyl LP
- a7 The fox and the compasses
- b1 Useful illusion for trailers
- b2 For whom the newspaper appears twice daily
- b3 Pinned needles and other optical illusions
- b4 Voice instead of tape measure
- b5 Loop of time
- b6 How to precisely measure weight with an innacurate balance
- b7 Backcover