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SUNDAY, NOVEMBER 22, 2009
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NEWS ABOUT: magnetic field

magnetic field stories: 7 news summaries

Real 'Thinking Cap' May Not
Be So Far Off

Magnetic pulse boosts learning, study shows; headgear next?

Jul 7, 09 2:44 PM CDT
(Newser) - A magnetic pulse directed at a certain area of the brain may enhance learning and memory, the Telegraph reports. Canadian researchers subjected volunteers to a test that required they track a dot moving on a computer screen with a joystick, and volunteers who received stimulation fared much better. More »

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memory • learning • brain • neuroscience • cognitive science • magnetic field • cognitive enhancement • thinking cap

 Huge Holes Found in 
 Earth's Magnetic Shield 

The Earth is in for a wild geomagnetic ride

Dec 17, 08 2:40 AM CST
(Newser) - Scientists have discovered two large and unexpected holes in the magnetic field that protects the Earth from solar winds, reports Space.com. The leaks won't pose any risk to health, but increased disruption to satellites and electrical systems can be expected when the cycle of solar storms reaches its next... More »

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Earth • sun • solar • solar wind • magnetic field • aurora borealis

You Heard? Headphones, Pacemakers Don't Jibe

Headsets may interfere with heart devices

Nov 9, 08 3:25 PM CST
(Newser) - Headphones used with digital music players may interfere with pacemakers and internal defibrillators, scientists discovered in research contradicting reports from the US government. “Exposure of a defibrillator to the headphones can temporarily deactivate the defibrillator,” the lead researcher said. Draping the headphones over the chest caused hindrance in... More »

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FDA • study • heart • mp3 • defibrillator • magnets • headphones • magnetic field • pacemakers

 Mercury Is Shrinking   

Messenger spacecraft reveals planets core still molten

Jul 3, 08 6:35 PM CDT
(Newser) - The planet Mercury is shrinking, the LA Times reports. Data from NASA’s Mercury Messenger spacecraft reveal that the planet’s diameter has shrunk by a mile over its history, probably because its core is cooling. Messenger flew in for a close-up in January, and scientists are now piecing together... More »

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NASA • planet • Earth • solar system • scientist • magnetic field • Mercury • molten rock

 'Magnet Molecule'
 May Guide Bird Migration 

Inner compass guides journeys, researchers believe

May 5, 08 8:22 AM CDT
(Newser) - Migrating birds may rely on a special molecule discovered in their eyes that allows them to  perceive the Earth’s magnetic field lines as a kind of road map, new research shows. The molecule may help birds navigate much the same way humans follow lines to stay on a highway... More »

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birds • migration • chemistry • Journal Nature • magnetic field • scientific research

Solar Lull May Trigger Ice Age

Global warming still dire despite
sluggish sun, study says

Feb 14, 08 2:56 PM CST
(Newser) - Solar activity, which usually runs in 11-year cycles, has been so sluggish of late that space weathermen are worried we might be entering a mini-ice age. They expected to see sunspot activity pick up about last March, to peak in 2012; if the sun stays this sluggish for another year... More »

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climate change • weather • astronomy • greenhouse gases • global warming • space • sun • magnetic field • cold

Über-Precise Atomic Clocks Are Half-Past a Revolution

Smaller, cheaper, and mysterious

Dec 13, 07 11:38 AM CST
(Newser) - Forget the Swiss—the world's best clocks sit in a Colorado lab where a team of scientists is shaping them into über-precise gadgets with broad-reaching implications on medicine, navigation, and surveillance. The National Institute of Standards and Technology has built a clock the size of a grain of rice... More »

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physics • clock • National Institute of Standards and Technology • atomic clock • magnetic field

7 Stories


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