Helium is the least reactive element known to science...
Basically, its going to be impossible to set helium on fire (unless you count nuclear fusion).
On a side note, even highly flammable gassses cannot combust if there is no oxygen present.
In all seriousness though, why didn't they just create a vacuum?
no its an innert gass, as in non reactive your thinking Hydrogen
inert*
Fission.
Nope, fusion. Really.
AFAIK there has to be something there to maintain a distance between the read head and the platter. In a vacuum, the head would hit the platter. Disks have an altitude rating and are designed to operate within a given set of air density values.
At least you might be able to tell when ur HDD is knackered as you will be squeeking when talking
Stelly