Aural Organ
Capturing sounds. Which sound fits into which pipe? This organ does not make the music itself. It captures sound from its surroundings. Put your ear to the…
Frequencies vary. It is not the pipe that makes these sounds, it picks them up from the surroundings. Listen to the pipe, what do you hear? And what do you…
Bagatelle Board
Xylophone track. Line up individual notes to form a song: Place xylophone blocks on the slope and let the ball roll. How do you arrange them so that their…
Beats
Tuning instruments to each other. If two different tones are played at the same time, we hear a mixed tone. If its two tones differ only slightly, its volume…
Bell in a Vacuum
This is what astronauts hear on the moon. How do sound waves spread in airless, windless space? Not at all. When astronauts communicate with knocking…
Big Tuning Forks
One fork, two prongs, many tones. Have you ever stuck your head between a tuning fork? The sound after striking is rather unpleasant. Many inharmonic…
Bucket Radio
Unconventional speakers: subtle vibrations become audible. The metal pin vibrates. This creates sounds that we cannot perceive. With the vessel on the pen,…
Captured Cloud
Swirling Fog. Step into the cloud. It’s pleasantly cool inside. Will you find your way out? In the two half-shells, nozzles spray fine water droplets. It's…
Clang Wardrobe
A direct line to the ear. These sounds go straight to the bone. For once, the sounds don't come to us through the air. String and fingers form the direct line…
Cogwheel-Melody
Humming in Canon. Start the cogwheel siren and hold a metal disc against one of the 35 cogwheels. The sound you hear belongs to the melody of ‘Frère…
Distant receiver
Big Ear. If the listening horn is well aligned, birds can be heard chirping even from far away. The large dish collects and focuses sound waves, amplifying…
Drum table
Rhythm drums. Which drum plate produces the lowest sound? Which one produces the highest? Hit a simple rhythm. Who completes it? Headphones on. Have fun!
Echo Pipe
Hello?! Shouting, calling, whistling, clapping – this tube answers. The returned sound is quite different from the original noise. How long does it take for…
Giant music box
by Brenda Hutchinson They decide themselves, with the help of small discs, which notes are played and thus create their own melody.
Hot Air Organ
Rijke tubes: Heat makes the sound. When air is heated, it expands. The pressure changes and the air rises to the top of the pipe at the speed of sound. There…
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;…
Lissajous Sounds
What sounds good also looks good. Two small mirrors oscillate at the same frequency as their respective speakers. The frequency of one mirror (and its…
Music in your arm
On air: your elbow. This is where the music flows through your body directly into your ear. The loudspeaker causes a metal rod to vibrate. Its small surface…
Music with bite
On air: your skull bone. This music drives into your bones, right up to your ear. The loudspeaker causes a metal rod to vibrate. Its small surface moves only…
Musical antenna
Play with the Field. A large antenna registers the changes in its own electric field when people enter it. The changes are made audible as sounds. In this…
Musical Cloudburst
Dry Shower. What’s hitting the umbrella? It’s music! The intensity of the water jet determines the note. The umbrella acts as a loudspeaker. ❄️ Technorama…
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…
Note Memory
Can you hit the right note? Tap start: You hear a tone. Set the tone you have just heard using the dial. Tap on ‘Auswertung’ (Evaluation). Is your memory…
Note-Timbre-Noise
What's the difference? Producing and analysing tones, sounds and noises. Tone: A sound wave is a periodic change in pressure that propagates in the air.…
Orgelpfeifen
Sound makes leaps. Four short pewter organ pipes and an adjustable wooden pipe are made to sound by pressing a bellows. Can you hear the jumps in pitch? And…
Oscylinderscope (Wave Watch)
Flipbook for vibrating strings. Turn the black drum with white cross stripes and pluck the strings: their vibrations appear as waves, in a magical way. The…
Overtones make the Music
Syntharp: breaking down tones. Plucking, bowing, striking - a string always sounds different depending on how it is struck. Its fundamental tone, the lowest…
Play a Siren Song
Whistles from every hole. Turn the disc, now hold the nozzle to it. The holes in the disc chop up the air flow. The pressure fluctuates, a sound wave is…
Rhythm Roundabout
Set the beat, keep the rhythm. The clapper strikes metal cylinders and wooden blocks that you place on the edge of the disc. They are your beaters. Drum…
Slap Organ
‘Plopp’, well tuned. Bath slippers and drainpipes - your organ. Take the slippers and carefully hit the pipe openings with them. The length of the pipe…
Sound Patterns
Chladni plates: sound figures with sand. The violin bow causes the metal plate to vibrate. The sand on the plate shows the corresponding vibration…
Sounding Glass
Which glass sounds higher, the empty or the full one? Moisten your fingers and circle the rim of the glass: Depending on the fill level, the frequency…
String Stuff
Plucked half-length. Playing with pitches on the large steel guitar. Pythagoras already knew the connection: shortening the string length increases the pitch,…
Theremin
Nothing touched. But it makes music! Where do the sounds come from if nobody touches the instrument? The theremin, developed by Lev Sergeyevich Termen over a…
Triad - metal, stone, wood
This is music! Comparing the sounds of different materials: this is how stone, metal, and wood resonate. The material, its length, volume, and the strength…
Vibrating Drumskin
Membrane sound pattern: freeze the vibration. Set the membrane vibrating and play with the frequency of the strobe light. If the flash frequency of the…
Vibrating Glass
Different wavelengths. The loudspeaker causes the cognac glass to vibrate.Where are the vibrations strongest? The strobe light reveals the otherwise…
Vibrating String
Nodes, loops, nodes, loops. The spring steel plate at the end of the string oscillates a hundred times per second. Lateral movements depend on how strongly we…
Vocal Vowels
Voice apparatus. Honking becomes sound. A type of trumpet is connected directly to a pump. It is fitted with a reed inside. If we press air through it with…
Walking Bass
Five bridges, five notes. You play this bass with your feet. You can ‘step’ five notes from the scale along the five bridges: C, D, E, G and A from the C…
Water Music
Jam session "Splash Sounds". Experiment with water, improvise with surfaces and pipes, conduct an entire water orchestra: these compositions bear your…
Whisper Route
Amplifying Sound. Clearly understandable, even from forty meters away, what your conversation partner is saying. Receiving/Listening: One of the satellite…
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…
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