Experimenting playfully with acoustic
Most of the day we hear different types of sounds, but hardly ever we “feel” them. Amazingly most of the sounds not only can be heard but also be felt and even seen! It is thrilling experiment with sounds: The experiments of the Listening Box with the voiceless tuning fork, listening-tubes, stethoscope, trembling elastics and squeaking balloons are self-explanatory in “acoustics”.
The Rope-Telefone: With two listening-tubes and string you get on the track of sound
