And one more for luck

[andrewducker]

I just discovered that in a 40x CD player, the outer rim of the disk is moving at 677km/hour or 55% of the speed of sound.

Digging a little deeper, I discover that a single speed CD-ROM can manage up to 500 RPM. Of course, that's CLV, whereas modern CD drives are CAV. Still, I wonder what speed 40x CD drives actually spin at.

Anyway round, that's really, really fast.

Comments

[mcgroarty.livejournal.com]

Supposedly when IBM was researching 7200 RPM drives (you can buy 15000 RPM now), they were using glass platters which had a tendency to shatter in all directions, like sharp-pointed glass bullets.

Who knew PCs could be so deadly?