Groovy Sounds
Build a paper-pencil-pin phonograph. In this classic activity, make a record player out of simple materials and listen to your favorite vinyl LP—no outlet…
Head Harp
Learn a little string theory. Wrap a string around your head and pluck it to play music.
Sound Bite
Tune in to tunes with your teeth. When you listen to a radio or music player, you normally hear the sound coming from the speaker or headphones. But sound…
Klankkaatser
Hello world? Shaped like a light bulb, resembling a spacecraft capsule: welcome to the Klankkaatser! Is anyone there? The sound waves don’t drift into space;…
Never-Ending Scale
When the scale descends infinitely… Listen closely, press a key, then the next – and compare. At first glance, identifying the highest note seems easy. Which…
Listen up! - Directional listening
The cat lies on the couch, eyes closed. Only the ears move slightly and turn in the direction from which they perceive a sound. Why can some creatures move…
Acoustics
Aggregate states
Algorithms
Animals, plants, habitats
Atomic and quantum physics
Atomic structure
Automats
Biology
Buoyancy
Chaos
Characteristics of life
Chemical Reactions
Chemistry
Colors
Computer science
Cryptology
Currents
Data and information
Design elements
Earth sciences
Electricity
Electricity and energy
Electricity and magnetism
Elektromagnetismus
