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Posts tagged frequency

January 7, 2015

 

Most radio experiments that look for transmissions from outer space focus on what are known as "narrow-band" transmissions.

Is E.T. Trying to Phone?

Scientists search for narrow-band transmissions in outer space as a possible sign of extraterrestrial life.

August 28, 2012

 

Quartz is used in many time-keeping devices

Keeping Time With Quartz

Quartz is a mineral... but how does it help your watch keep time?

August 25, 2011

 

The Physics Of A Picket Fence Clap

Stand in front of a picket fence, clap your hands, and listen to the musical quality of the reverberation.

May 10, 2010

 

How Ocean Waves Form

Have you ever been to the ocean and watched the waves? How do they form?

March 16, 2009

 

Dolphin Whistles

Dolphins have evolved to live in an aquatic environment, and like bats, they can use sonar to locate prey by emitting different frequencies of sounds.

December 15, 2008

 

Megaphones

Have you ever wondered how simple megaphones like cupping your hands around your mouth amplify your voice so well?

August 2, 2007

 

What’s So Primary about Primary Colors?

With three simple ingredients, a red, a green, and a blue spotlight, you can make any color of the rainbow. Learn more on this Moment of Science.

August 25, 2005

 

Doin’ the Wave

No matter when you go to the beach, the waves are rolling in. The ocean doesn’t seem to take a break. What’s causing that? Learn more on this Moment of Science.

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