Bone Conduction

Mobile Science Museum · Acoustics

Operation: 1. Press the "Auto Play" button or the "External Audio Source" button, and insert the audio connector into the provided audio source; 2. Choose any rod, stand it between the disc and the ear, and listen carefully; 3. Place one elbow on the disc, cover your ear with your hand, and listen carefully. Function Overview: The exhibit consists of conduction rods of different materials, a music player, a resonance speaker, an external audio source jack, etc. Press the "External Audio Source" button and insert the audio connector into a provided audio source that is playing music, or press the "Auto Play" button, then choose a method of participation: 1. Select a conduction rod, place one end at the center of the disc in the interaction area, and bring the other end close to your ear, and listen carefully; 2. Place your elbow at the center of the disc in the interaction area, cover your ear with your palm, and you can hear sound. Scientific Principle: 1. How does sound travel to your ear? 2. Do different rods make the sound seem different? Sound is produced by the vibration of objects, and its propagation requires a medium. Any solid, liquid, or gas can transmit sound, and ultimately transmit it to the auditory nerve in the cochlea. The auditory nerve sends signals to the brain, and thus we hear sound. In the exhibit, because the rods are made of different materials, the sounds heard are not exactly the same. Another method is through the bones of the arm and the skull, which transmit sound to the cochlea. When we speak ourselves, the sound we hear is mainly transmitted through the skull; when listening to others speak, sound vibrates through the air, causing the eardrum to vibrate. Everyone can try this at home: record your own voice and listen to it. Is it the same as the voice you hear when speaking directly?

Options

• China Science and Technology Museum Standard Edition CSTM Standard Edition
  Dimensions (unit: m): 0.75×0.68×0.87 Brand: KexMall Model: PopsciCat-Mobile-038 1. Materials: ① Base: flame-retardant ABS injection molding, thickness ≧4mm ② Tabletop: compact laminate, thickness ≧12mm ③ Instruction sign: acrylic UV printing ④ Tabletop fasteners: standard triangular locks 2. Main Configuration: ① Electrical control: electrical logic control system, equipped with KexMall® K1 special PLC controller with protection for science exhibit ② Switching power supply: AC-DCS-60-12/24 input AC100-240V, 50/60Hz, output power 60W ③ Button: self-resetting 22mm stainless steel metal button with ring light ④ Speaker: custom resonance speaker 3. Energy Requirements: AC100-240V, 50/60Hz 200W

  Operation: 1. Press the "Auto Play" button or the "External Audio Source" button, and insert the audio connector into the provided audio source; 2. Choose any rod, stand it between the disc and the ear, and listen carefully; 3. Place one elbow on the disc, cover your ear with your hand, and listen carefully. Function Overview: The exhibit consists of conduction rods of different materials, a music player, a resonance speaker, an external audio source jack, etc. Press the "External Audio Source" button and insert the audio connector into a provided audio source that is playing music, or press the "Auto Play" button, then choose a method of participation: 1. Select a conduction rod, place one end at the center of the disc in the interaction area, and bring the other end close to your ear, and listen carefully; 2. Place your elbow at the center of the disc in the interaction area, cover your ear with your palm, and you can hear sound. Scientific Principle: 1. How does sound travel to your ear? 2. Do different rods make the sound seem different? Sound is produced by the vibration of objects, and its propagation requires a medium. Any solid, liquid, or gas can transmit sound, and ultimately transmit it to the auditory nerve in the cochlea. The auditory nerve sends signals to the brain, and thus we hear sound. In the exhibit, because the rods are made of different materials, the sounds heard are not exactly the same. Another method is through the bones of the arm and the skull, which transmit sound to the cochlea. When we speak ourselves, the sound we hear is mainly transmitted through the skull; when listening to others speak, sound vibrates through the air, causing the eardrum to vibrate. Everyone can try this at home: record your own voice and listen to it. Is it the same as the voice you hear when speaking directly?

• Optimized Popular Edition Optimized Edition
  Dimensions (unit: m): 0.75×0.68×0.87 Brand: KexMall Model: PopsciCat-Mobile-038 1. Materials: ① Base: flame-retardant ABS injection molding, thickness ≧4mm ② Tabletop: compact laminate, thickness ≧12mm ③ Instruction sign: acrylic UV printing ④ Tabletop fasteners: standard triangular locks 2. Main Configuration: ① Electrical control: electrical logic control system, equipped with KexMall® K1 special PLC controller with protection for science exhibit ② Switching power supply: AC-DCS-60-12/24 input AC100-240V, 50/60Hz, output power 60W ③ Button: self-resetting 22mm stainless steel metal button with ring light ④ Speaker: custom resonance speaker 3. Energy Requirements: AC100-240V, 50/60Hz 200W

  Operation: 1. Press the "Auto Play" button or the "External Audio Source" button, and insert the audio connector into the provided audio source; 2. Choose any rod, stand it between the disc and the ear, and listen carefully; 3. Place one elbow on the disc, cover your ear with your hand, and listen carefully. Function Overview: The exhibit consists of conduction rods of different materials, a music player, a resonance speaker, an external audio source jack, etc. Press the "External Audio Source" button and insert the audio connector into a provided audio source that is playing music, or press the "Auto Play" button, then choose a method of participation: 1. Select a conduction rod, place one end at the center of the disc in the interaction area, and bring the other end close to your ear, and listen carefully; 2. Place your elbow at the center of the disc in the interaction area, cover your ear with your palm, and you can hear sound. Scientific Principle: 1. How does sound travel to your ear? 2. Do different rods make the sound seem different? Sound is produced by the vibration of objects, and its propagation requires a medium. Any solid, liquid, or gas can transmit sound, and ultimately transmit it to the auditory nerve in the cochlea. The auditory nerve sends signals to the brain, and thus we hear sound. In the exhibit, because the rods are made of different materials, the sounds heard are not exactly the same. Another method is through the bones of the arm and the skull, which transmit sound to the cochlea. When we speak ourselves, the sound we hear is mainly transmitted through the skull; when listening to others speak, sound vibrates through the air, causing the eardrum to vibrate. Everyone can try this at home: record your own voice and listen to it. Is it the same as the voice you hear when speaking directly?

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