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sound waves

Sound Waves
Image: iStockphoto.com/YouraPechkin

Sound Waves

There's a lot that is good about sound waves. For example, they let you see unborn babies. And they can make things levitate.

But they ruin space battles! Find out here what an accurate "Star Wars" would sound like, plus what sound waves are, how your ear works, and why you sound so good in the shower.

Bozeman Science
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Pitch and Frequency

Pitch and Frequency

The frequency of sound waves determines whether we can hear them, but also whether we like what we hear. More...

Article
The Physics Classroom
Sound, Ultrasound, and Seismic Waves

Sound, Ultrasound, and Seismic Waves

How do sound waves form, how do they differ from one another, and how can they be put to use? This site sums up sound. More...

Article
BBC
Overview of Sound Waves

Overview of Sound Waves

Find out what sound waves are, how they differ from light and water waves, and how they can travel through objects as well as air. More...

Article
School for Champions
Where Music Meets Science: Timbre and Complex Waves

Where Music Meets Science: Timbre and Complex Waves

No one wants to hear a pure sound wave. The musical sounds we enjoy consist of a dominant frequency plus others. This mix of pitches gives the sound its timbre, or quality. More...

Video
North Carolina School of Science & Math
Don’t You Fret! Standing Waves on a Guitar

Don’t You Fret! Standing Waves on a Guitar

Find out about standing waves firsthand by picking or plucking a guitar or other stringed instrument. More...

Activity
Science Buddies
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Fourier: Making Waves

Fourier: Making Waves

Ready for a challenge? Build all sorts of waves by adding up sines and cosines. Change amplitudes, periods, and wavelengths. Listen to your waves or see them expressed mathematically. More...

Interactive
PhET
Infrasonic Calls and How They Work

Infrasonic Calls and How They Work

Sound waves too long for us to hear travel farther than shorter sound waves. That's why elephants can hear other elephants from at least 2.5 miles (4 km) away. More...

Article
Animal Communication Project
Real-World Levitation to Inspire Better Pharmaceuticals

Real-World Levitation to Inspire Better Pharmaceuticals

Sure, read the article, but DON'T MISS THE VIDEO. It shows droplets of drugs held in mid-air by sound waves. This could allow researchers to improve the drugs. More...

Video
ANL
Sound

Sound

Play with sound waves. Change their amplitude and frequency. Combine and bounce them. See and hear what you've done. More...

Interactive
PhET
Sound Is a Pressure Wave

Sound Is a Pressure Wave

Sound waves travel through liquids, solids, and gases. The sounds we hear come from molecules of air compressing and decompressing as sound waves travel through them. More...

Article
The Physics Classroom
Sound Wave Properties

Sound Wave Properties

After reviewing sound waves and their properties, this site shows how they're put to work in sound systems. More...

Article
MediaCollege.com
Sound Waves Simulation Quiz

Sound Waves Simulation Quiz

Think you've mastered the properties of sound and sound waves? Test yourself here. More...

Interactive
ProProfs
Sound Waves Used to Increase Disk Drive Capacity

Sound Waves Used to Increase Disk Drive Capacity

Thanks to ultrasound, both hard disk drives and solid state drives may soon be storing more data than ever. More...

Article
Computerworld
The 5 Worst Sounds in the Universe

The 5 Worst Sounds in the Universe

Listen to the sounds here if you dare. Why are they so unpleasant? It all boils down to how our brains react to certain frequencies of sound. More...

Interactive
TIME Magazine
Water Bubbles and Sound Waves in Zero-Gravity in Space

Water Bubbles and Sound Waves in Zero-Gravity in Space

When gravity gets out of the way, as it does in Earth orbit, sound waves can do amazing things to water bubbles and drops. Watch! More...

Video
NASA
Where Music Meets Science: Pitch and Frequency

Where Music Meets Science: Pitch and Frequency

What does music have to do with air molecules squeezing together and spreading apart many times a second? Explore the science of music here. More...

Video
North Carolina School of Science & Math

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