depends on the purpose of the device
synapes
stimuli are converted into electronic signals. Such electronic signals travel by a huge network of nerves throughout the body. These signals converge to the brain, where sensory neurons interpret them and send back an "order" through the Central Nervous System, to the correspondent point of the body where the stimulus has happened. Such "order" may refer to the release of defence cells, or simply tell your arm to touch the point of the stimulus,in order to calm you down, as a simple example. The signal that flows through the nerve, uses a mineral, magnesium, as a basis to conduct the electronic signal. Sodium is another mineral that participates of the process. Such travel may take only miliseconds to reach the brain and to come back.
The auditory system, which includes the outer ear, middle ear, and inner ear, works in conjunction with the brain to interpret sound waves. Sound waves are captured by the outer ear and funneled through the ear canal to the eardrum, causing it to vibrate. These vibrations are transmitted through the ossicles in the middle ear to the cochlea in the inner ear, where they are converted into nerve signals. These signals are then sent to the auditory cortex in the brain, where they are processed and interpreted as sound.
A telephone is an instrument that sends voices using electricity. Sound waves are converted into electrical signals, transmitted through wires or wireless networks, and then converted back into sound at the receiving end, allowing people to communicate over long distances in real time.
A message is transmitted through a glass fiber using light signals. A laser or LED light source is used to encode the message into light pulses, which travel through the glass fiber via total internal reflection. The light pulses are detected and decoded at the receiving end to recover the original message.
Light.
synapes
Sound is transmitted through the ear when sound waves enter the ear canal and vibrate the eardrum. The vibrations are then passed through the middle ear bones to the cochlea in the inner ear, where they are converted into electrical signals. These signals are sent to the brain via the auditory nerve, where they are processed and interpreted as sound.
Electrical signals are transmitted from one place to another through conductive materials, such as copper wires. These materials provide a path for the signals to travel, and the signals are modulated to carry information. In some cases, signals can also be transmitted wirelessly through electromagnetic waves.
Once sound energy enters the mouthpiece of a telephone, it is converted into electrical signals by a microphone. These electrical signals are then transmitted through the telephone wire to the earpiece at the other end, where they are converted back into sound waves that can be heard by the listener.
When sound waves reach a microphone, they cause the microphone diaphragm to vibrate. These vibrations are then converted into electrical signals by the microphone's transducer, typically a coil or capacitor. The electrical signals are then transmitted through the microphone cable to a recording device or amplifier.
They are pheromones.
Voice signals are converted to digital data, transmitted as light pulses through fiber optic cables using lasers, then converted back to voice signals at the receiving end by using photodetectors. This process allows for transmitting voice communication across long distances quickly and efficiently.
An electronic device converts the sound waves into a digital signal/code that is then transported by microwaves or radiowaves, until it reaches another device that converts that code back into a soundwave.
Sound energy is transferred when speaking into a telephone. The vibrations caused by the sound of our voice are converted into electrical signals that are then transmitted through the telephone line to the receiving end.
Sound vibrations are transmitted through the middle ear by passing from the eardrum to the three small bones called ossicles (malleus, incus, and stapes). These bones amplify the vibrations and transmit them to the inner ear, where they are converted into electrical signals that the brain interprets as sound.
the pinna