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tedsanders
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Do your homework
tedsanders   3/3/2014 11:27:12 PM
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"rare-earth-transition-metal alloys called ferrimagnets"

 

A ferrimagnet has nothing to do with the materials that compose it. What defines a ferrimagnet is how its spins are aligned. It's the first sentence of the Wikipedia article, for crying out loud! :)

 

http://en.wikipedia.org/wiki/Ferrimagnet

mysterylectricity
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Taking Aim at Winchester Head Power Consumption? Seriously?
mysterylectricity   3/5/2014 4:29:27 AM
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Cool science, but how much power can really be saved? If each of the 7.14 B global population needs 10MB or about .1 second of write time every day, and mag heads dissipate 1 watt, that's about 200 kW/Hr or $20 saved worldwide each day. Hardly a game changer ;)



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