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Posts tagged magnetic field

January 1, 2018

 

Swim, salmon, swim!

Salmon Have An Internal Compass

Scientists discovered that salmon use "geomagnetic imprinting" to find their way home.

May 3, 2016

 

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Motional Induction 2

The ocean generates its own magnetic field, which peaks everty 12.5 hours along with the rising tides.

May 2, 2016

 

electric grid

Motional Induction

Sea currents create electric currents through a process called motional induction.

September 23, 2015

 

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An Ocean on Jupiter’s Moon Ganymede 

Measuring data from the Hubble telescope, NASA has discovered a salt-water ocean on Jupiter's largest moon beneath layers of ice.

August 30, 2012

 

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Make Your Own Compass

Learn this old sailing trick and find your way back to shore!

February 24, 2012

 

The supernova is the spiral-looking like object.

Get Ready For A New Type Of Supernova!

Supernovas explode with a bright burst of radiation, giving off as much energy in a few days as our sun will give off in its entire lifetime.

April 5, 2010

 

From Galileo To Modern Times, What Do We Know About Sunspots?

Have you ever seen pictures of the sun and wondered what those dark spots were? They're sunspots!

January 22, 2007

 

Scans, Scans, and More Scans

MRI, CT, PET... What are all these scans used for and how are they different?

January 15, 2007

 

Backwards Sunspot

What is a backwards sunspot and what does it signify?

December 6, 2005

 

When North Goes South

On a previous show we discussed how, every 250,000 years or so, the north and south poles switch places. Not that the places themselves move, rather, the entire magnetic field of the earth flips around, resulting in the pole we now call north being on the southern tip of the planet, and vice versa. Why does this happen? Learn more on this Moment of Science.

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