Do Magnetic 'Avalanches' Damage Disks?

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For those of you that missed this story, scientists say they are working on ways to make data storage more reliable after discovering that "avalanche" effects in spinning magnetic fields can cause data loss in hard drives.

Spinning magnetic fields can cause avalanches or ripples across an area of the disk's surface, according to two physicists, Joshua Deutsch, a physics professor at the Santa Cruz campus of the University of California; and Andreas Berger of Hitachi Global Storage Technologies, who reported the effect in the US Physical Review Letter on July 13th.
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According to them, the spin change is not a simple switch-over, as was previously thought. Instead each atom wobbbles as it spins, much like the Earth wobbles on its axis as it spins throughout the year, a phenomenon known as precession, and one that causes the seasons.
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Funny, I thought the fact that the Earth is tilted on it's axis was the reason for the Seasons, who knew it was really because we are wobbling.

Sorry, but after I hit that paragraph I couldn't stomach reading any further. Such a gross mis-understanding of a basic concept is a bit startling for a tech publication like PC World.
 
JethroXP said:
Funny, I thought the fact that the Earth is tilted on it's axis was the reason for the Seasons, who knew it was really because we are wobbling.

Sorry, but after I hit that paragraph I couldn't stomach reading any further. Such a gross mis-understanding of a basic concept is a bit startling for a tech publication like PC World.
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From NASA's website:

http://solarsystem.nasa.gov/planets/profile.cfm?Object=Moon

Maybe you are French?

http://www.break.com/index/56-percent-of-french-people-are-stupid.html
 
JethroXP said:
Funny, I thought the fact that the Earth is tilted on it's axis was the reason for the Seasons, who knew it was really because we are wobbling.

Sorry, but after I hit that paragraph I couldn't stomach reading any further. Such a gross mis-understanding of a basic concept is a bit startling for a tech publication like PC World.
Click to expand...

http://www.geocities.com/astrologyages/precession.htm

Let me clarify: the "seasons" are indeed caused by our being tilted...

But it is because of precession ("wobbling") that we are tilted...

You seriously didn't know this?
 
No, the Earths axial tilt and bulging equator being pulled by the Sun and Moon are what causes precession.
It even says that in your geocities link.
 
For seasons, precession just means that in about 13,000 years the Northern hemisphere will have Summer in January and Winter in July.
Then it will move back over the next 13,000 years.
 
Tolyngee said:
http://www.geocities.com/astrologyages/precession.htm

Let me clarify: the "seasons" are indeed caused by our being tilted...

But it is because of precession ("wobbling") that we are tilted...

You seriously didn't know this?
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Nice try, but you have it backward, we aren't tilted because we wobble, we wobble because we are tilted. Most theories for our tilt have to do with large impact events in the early formative days of the Earth.

http://www.sciencenetlinks.com/sci_update.cfm?DocID=167

You really should research this stuff before coming in here and stepping on your own dick so publicly. It's bad enough that you had no idea what you were talking about, but the fact that you tried to make me out for the idiot is what makes this so funny. Oh yeah, and that you did this is a non-editable forum is just precious.
 
JethroXP said:
Funny, I thought the fact that the Earth is tilted on it's axis was the reason for the Seasons, who knew it was really because we are wobbling.

Sorry, but after I hit that paragraph I couldn't stomach reading any further. Such a gross mis-understanding of a basic concept is a bit startling for a tech publication like PC World.
Click to expand...

That's why I stopped reading PC World about 10 years ago. The articles just started going downhill and I would find argument with most of them.
 
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