Re: [Phys-l] Prising electrons from the atom

[Bernard Cleyet <bernardcleyet@redshift.com>]

Why Johansson blocks are "wrung"?

and that sliding friction is viscous instead of coulomb?

bc thinks it's the rich man's air table, wonders how ringing gets rid  
of the air quickly, or is it air pressure not molecular force that  
keeps them together?


On 2008, Dec 18, , at 11:32, John Denker wrote:

> 1) To best understand the explanation, it helps to quantify
> the situation that does *not* work:  Take two clean,
> optically flat pieces of metal, and bring them together
> carefully, face to face.  They won't make contact,
> because of the layer of air.  It's easy to calculate
> how long it would take to squeeze out the air.  It's
> a long, long time, because the flow geometry is so
> unfavorable.
>
> You can easily observe that this is happening, because
> there will be relatively little sliding friction between
> the two pieces.  It's sorta the poor man's air table.