Stations-ID: D037

Stations-ID: D075

Instructions:

Hold your ears to the sphere shaped listening lamp.

What can you hear?

• Stand in the room. What do you hear?
• What do you hear when you hold your ear to the openings in the sphere?
• Do all spheres sound the same?
• What do you hear if you cup your hand over the ear?

The ‘noise’ in spherical hollow bodies is called ‘Helmholtz resonance,’ named after Hermann von Helmholtz (1821–1894), one of the most famous and versatile scientists of his time. Since physics was considered a ‘useless art’ in his youth, Helmholtz initially studied medicine, until his interest in the connections between the physical nature of things and their perception by the sensory organs finally led him to become a professor of physics.

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Stations-ID: D076

Instructions:

Take the Mirror ears, hold them to your ears and walk through the room.

What can you hear?

• Stand in the room. What do you hear?
• What do you hear when you hold your ear to the openings in the sphere?
• Do all spheres sound the same?
• What do you hear if you cup your hand over the ear?

The ‘noise’ in spherical hollow bodies is called ‘Helmholtz resonance,’ named after Hermann von Helmholtz (1821–1894), one of the most famous and versatile scientists of his time. Since physics was considered a ‘useless art’ in his youth, Helmholtz initially studied medicine, until his interest in the connections between the physical nature of things and their perception by the sensory organs finally led him to become a professor of physics.

Mehr dazu in unserem Stationenpark-Handbuch
Find out more in our Handbook

Stations-ID: D079

Instructions:

Take a glove or a blue cloth.

Take hold of an aluminium bar with your thumb and index finger and move your hand slowly outward, varying pressure and speed as you go.

• Where can you generate a tone easily?

• What are the differences between the tones produced by the different bars?

• Listen along the length of the top bar, where is the sound at it’s loudest?

• Touch a bar gently with the tip of your finger, while it is ringing. What do you feel?

• What do you feel when you touch the round top of a ringing bar?

This station was built by Dresden-based musician Jan Heinke. With the steel cellos and steel harps he has constructed, he has created a unique sound which can hardly be compared to the sound of classical instruments.

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Stations-ID: D088

Instructions:

Put your head in one of the hollows of the humming stones and hum different tones to yourself: loud, quiet, high or low notes.

A partner can put his hand on your shoulder lightly during this experiment.

• What do you hear when humming in the hollow? What do you feel?

• Try different notes. Do they all sound the same?

• What does your partner feel when (s)he places his/her hand on your shoulder?

This experiment was designed by the educationalist, artist and carpenter Hugo Kükelhaus (1900-1984) for his ‘Experience Field for Developing the Senses’. He was inspired by Stone Age cult sites found on the island of Malta, he describes the effect of the experiment as follows: „The inner massage that is created in the head and reabsorbed by it signifies an unusually intense connection of the entire body from within.”

Mehr dazu in unserem Stationenpark-Handbuch
Find out more in our Handbook