Bone Conduction
Operation: 1. Press the "Auto Play" button or the "External Audio Source" button, and insert the audio plug into the built-in audio source; 2. Choose any rod and stand it between the disc and the ear, and listen carefully; 3. Place one elbow on the disc, cover the 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 plug into a built-in audio source that is playing music, or press the "Auto Play" button, then choose a way to participate: 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 the 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 transmission 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 the signal to the brain, and then we hear the sound. In the exhibit, because the rods are made of different materials, the sounds heard are not exactly the same. Another method is to transmit sound to the cochlea through the bones of the arm and the skull. 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 go back and try it: record your own voice and listen to it. Is it the same as the voice you hear when you speak directly?
Options
- 0.9×0.6×0.87 0.9×0.6×0.87Overall Dimensions: 0.9×0.6×0.87 Brand: KexMall Model: PopsciCat-Medium-032 Materials: ①Exhibition Stand: 2.0mm cold-rolled steel plate, dimensions not less than 0.75×0.45×0.7m, surface baked paint (or electrostatic powder coating), reserved floor feet openings for later height adjustment and four-foot balance, reserved pin-type AC female socket position for power supply to electrical exhibits ②Tabletop: high-quality flame-retardant fiberglass material, total thickness with edge ≧100mm ③Instruction Plate: acrylic UV high-precision inkjet printing, thickness ≧3mm ④Maintenance Door: 2.0mm cold-rolled steel plate, surface baked paint (or electrostatic powder coating) Main Configuration: ①Electrical Control: electrical logic control system, equipped with Inertia® K1 type PLC controller with protection specially for science exhibit ②Switching Power Supply: AC-DC S-60-12/24 input AC100-240V, 50/60Hz, output power 60W ③Button: self-reset 22mm stainless steel metal button with ring light; lamp bead voltage not higher than 12V to avoid high-voltage leakage risk; mechanical life: 1 million times; protection level: IP67; protection method: waterproof. ④Speaker: specially made resonance speaker Energy Requirement: AC100-240V, 50/60Hz 100W (standard three-wire socket)
Operation: 1. Press the "Auto Play" button or the "External Audio Source" button, and insert the audio plug into the built-in audio source; 2. Choose any rod and stand it between the disc and the ear, and listen carefully; 3. Place one elbow on the disc, cover the 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 plug into a built-in audio source that is playing music, or press the "Auto Play" button, then choose a way to participate: 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 the 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 transmission 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 the signal to the brain, and then we hear the sound. In the exhibit, because the rods are made of different materials, the sounds heard are not exactly the same. Another method is to transmit sound to the cochlea through the bones of the arm and the skull. 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 go back and try it: record your own voice and listen to it. Is it the same as the voice you hear when you speak directly?