Physics in Action by Topic

Compression Waves & Sound

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Electrifying Tesla Coil Music and Fashion

Creating art with stunning electric arcs


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Cloaking Earthquakes

Scientists aim to "hide" buildings from seismic waves


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Silencing with the Speech Jammer

Time-delayed voice recordings render you silent


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Router Vision

With an adapted wireless router, you can see moving objects through walls


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Cleaning with Sound

Sound may not be a normal cleaning product in your house, but it is just the thing for cleaning delicate jewelry, surgical instruments, lenses, and many other small, intricate objects. Soon, it could also make cleaning big objects like houses or machines much more efficient.


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Nanoantennas – detecting the very small

How many ways can you think of to detect a single particle or atom? What uses would a tool that could do this have? The nanoantenna can! Read on to find out how and what uses it might have.


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Sensitive as a Bat: Navigating the World by Echoes

Daniel Kish is the world's foremost expert on echolocation, and teaches the trick, learned from bats, to help the blind navigate like never before.


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Fiddle Physics

Physicists are using sophisticated recording equipment and computer models to probe how a violin makes its sound. Could they be on the verge of discovering the "secret of Stradivari"?


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Sonic Shock

Have you ever heard a sonic boom? Have you ever seen the shock waves that cause one?


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Catch an Earthquake

San Francisco and Los Angeles, home to about 7.5 million people and to much of the economy of California, lie close to the infamous San Andreas fault.


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Sound, Lights, Action!

Sonoluminescence is a way to turn sound energy into light. When intense sound waves are created in a flask of water, a tiny air bubble in the water can give off flashes of light.


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Blowin' in the Wind

After crossing Florida, Hurricane Katrina headed into the Gulf of Mexico early on August 26, 2005 as a Category One hurricane.