Hitachi has announced that they'll be able to produce a 4 TB hardrive for consumers within 4 years, which would be astounding. But of course, what is relevant here is that this too will make use of the physics of giant magnetoresistance (GMR), that won its 2 discoverer the Nobel Prize this week.
So again, if someone tells you physics is the study of esoteric subjects with no direct impact on our lives, you point him/her to this.
Zz.
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