13 Feb
2015
13 Feb
'15
1:18 a.m.
On Thu, Feb 12, 2015, at 10:50, cowan(a)ccil.org wrote:
Dave Horsfall:
I think that's based on a modern hard drive, though. There's a reason
modern hard drives are sealed with air filters on the pressure
equalizing ports.
Not just that, but the aerodynamics have been
screwed up. The heads will
no longer "float" on an air-cushion; I believe the gap is the traditional
human hair width, if that.
Much larger. I remember seeing a scale drawing that showed the gap
as half an inch or so, with a dust particle the size of a freaking
mountain and a human hair that looked like a Tipler cylinder.