By using an Oscilloscope
so scientists can detect smaller objects to study
Cancer is 1 illness pets can detect, as far as scientists know, only dogs can detect it.
Their eyes
Scientists detect the presence of magnetic fields using instruments called magnetometers, which can measure the strength and direction of magnetic fields. These instruments can detect the effects of magnetic fields on nearby objects or particles, allowing scientists to indirectly observe and study them.
That's what sound IS ... What we think of as sound are those vibrations that we can detect (with our ears).
The study is rejected.
The human ear can detect sound frequencies ranging from about 20 Hz to 20,000 Hz.
Sound
with its antenas....
Sound waves cannot propagate through the vacuum of space. Scientists observe explosions of stars through telescopes that detect different forms of electromagnetic radiation, such as light, X-rays, and gamma rays. These observations provide valuable information about the event, even though sound waves are not involved.
the cells of the hairs don't detect the sound waves at all. The full hair is vibrated by the sound waves and this vibration is picked up by nerves and the info is sent to the brain.
They don't produce sound, they are used to detect it.