MORE IDEAS FROM What are sound waves and how do they work? | Popular Science
The shape of waves is rolling peaks and valleys. If the wave moves faster, the peaks and valleys form closer together. If it moves slower, the waves spread out.
We are surrounded by sound waves. Sound has the power to communicate ideas, scare us, entertain us, even help us fall in love.
Sound waves are a kind of energy that is launched when an object vibrates. These waves travel through a medium like air or water. When they reach your eardrum, the brain translates the pressure waves into words or music.
Sound must travel through a medium like water, air or even sand. It means you will never hear an explosion in a vacuum.
The speed of sound, or the sound's velocity, differs depending on how dense the medium is it's moving through. Generally, the speed of sound is 1,127 feet per second or 767.54 miles per hour.
Musicians and content creators need knowledge of frequencies and amplitude in their home recording set-ups to ensure their voice sounds rich and clear. Understanding sound can help them choose microphones best suited and help to set up the room to reflect or dampen sounds.
The human brain is a highly complex electrochemical organ, generating as much as 10 watts of electricity.
This electrical activity is displayed in the form of four types of brainwaves: Beta, Alpha, Theta and Delta which correspond with focus, rest, creativity and deep sleep.
The essential idea of white noise is to create constant and unchanging background noise to help us fall asleep or to study. From crickets chirping to distant thunder noises, white noises drown out any potentially distracting sounds.
The adjective "white" was used to describe the sound because its ultimate combination has similarities to the qualities of white light.
Most people have a problem focusing when there is a distraction. Learning can suffer by distracting background sounds.
A study found that background and office noises decreased the performance of introverts in tasks involving reading comprehension and mental arithmetic. Performance during silence was the same for both personality types, suggesting introverts need silence when studying.
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