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Posts tagged frequency

January 7, 2015


SETI – The Search for Extraterrestrial Intelligence Radio Telescope

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



Keeping Time With Quartz

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

August 25, 2011


white picket fence

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


Two bottlenose dolphins posing

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


Girl using hands as megaphone


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

August 2, 2007


Multicolored milk puddle

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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