it makes us communicate.
to help humans
Because humans are humans and every human that has ever lived has used at least hundreds of different technologies every day of their lives. The earliest humans used the technologies developed and used by their direct prehuman ancestors. Humans will always use technologies and develop improved technologies.
yes they are used to help people that are usally blind
"A sound meter measures the pressure of sounds. It is used in measuring the amount of noise pollution, such as aircraft noise. The sound meter does not measure the amount of sound that humans hear. There is a different type of meter used for this."
They don't produce sound, they are used to detect it.
YES its used a lot in subliminal messages
Is this for 98'S sound of the city : )
Yes, they help humans with brain cancer. There venom is used for medicine.
spectral analysis
spectral analysis
natural gas is used by humans every day all around the world
The Declaration of Independence is still used today. It affects every person in the United States, because it help to protect their rights as humans.