Reply to post: Re: Helium?

WDC loads its belt-fed drive cannon, blasts out disks 'n' cards galore


Re: Helium?

The helium is less dense at a given pressure, so there's less friction between the platters and the gas inside the drive. That reduces heat produced and allows more platters to be packed into a given drive height.

You wouldn't think the friction between the seemingly smooth (it's not, microscopically, of course) platter and the air or helium inside the drive would really make any difference, but apparently it does.

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